Update docs (#291)

diff --git a/docs/dyn/sheets_v4.spreadsheets.html b/docs/dyn/sheets_v4.spreadsheets.html
index b6fdd6f..79f396b 100644
--- a/docs/dyn/sheets_v4.spreadsheets.html
+++ b/docs/dyn/sheets_v4.spreadsheets.html
@@ -287,6 +287,8 @@
                 "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                   "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                       # the user's locale will be used if necessary for the given type.
+                      # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                      # information about the supported patterns.
                   "type": "A String", # The type of the number format.
                       # When writing, this field must be set.
                 },
@@ -2063,6 +2065,8 @@
                     "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                       "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                           # the user's locale will be used if necessary for the given type.
+                          # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                          # information about the supported patterns.
                       "type": "A String", # The type of the number format.
                           # When writing, this field must be set.
                     },
@@ -2890,6 +2894,8 @@
                     "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                       "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                           # the user's locale will be used if necessary for the given type.
+                          # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                          # information about the supported patterns.
                       "type": "A String", # The type of the number format.
                           # When writing, this field must be set.
                     },
@@ -4600,6 +4606,8 @@
                 "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                   "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                       # the user's locale will be used if necessary for the given type.
+                      # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                      # information about the supported patterns.
                   "type": "A String", # The type of the number format.
                       # When writing, this field must be set.
                 },
@@ -6118,6 +6126,8 @@
               "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                 "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                     # the user's locale will be used if necessary for the given type.
+                    # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                    # information about the supported patterns.
                 "type": "A String", # The type of the number format.
                     # When writing, this field must be set.
               },
@@ -6945,6 +6955,8 @@
               "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                 "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                     # the user's locale will be used if necessary for the given type.
+                    # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                    # information about the supported patterns.
                 "type": "A String", # The type of the number format.
                     # When writing, this field must be set.
               },
@@ -8152,6 +8164,8 @@
               "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                 "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                     # the user's locale will be used if necessary for the given type.
+                    # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                    # information about the supported patterns.
                 "type": "A String", # The type of the number format.
                     # When writing, this field must be set.
               },
@@ -9287,6 +9301,8 @@
                     "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                       "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                           # the user's locale will be used if necessary for the given type.
+                          # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                          # information about the supported patterns.
                       "type": "A String", # The type of the number format.
                           # When writing, this field must be set.
                     },
@@ -10114,6 +10130,8 @@
                     "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                       "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                           # the user's locale will be used if necessary for the given type.
+                          # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                          # information about the supported patterns.
                       "type": "A String", # The type of the number format.
                           # When writing, this field must be set.
                     },
@@ -14170,6 +14188,8 @@
                 "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                   "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                       # the user's locale will be used if necessary for the given type.
+                      # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                      # information about the supported patterns.
                   "type": "A String", # The type of the number format.
                       # When writing, this field must be set.
                 },
@@ -15485,6 +15505,8 @@
                 "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                   "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                       # the user's locale will be used if necessary for the given type.
+                      # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                      # information about the supported patterns.
                   "type": "A String", # The type of the number format.
                       # When writing, this field must be set.
                 },
@@ -17119,6 +17141,8 @@
                 "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                   "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                       # the user's locale will be used if necessary for the given type.
+                      # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                      # information about the supported patterns.
                   "type": "A String", # The type of the number format.
                       # When writing, this field must be set.
                 },
@@ -18528,6 +18552,8 @@
         "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
           "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
               # the user's locale will be used if necessary for the given type.
+              # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+              # information about the supported patterns.
           "type": "A String", # The type of the number format.
               # When writing, this field must be set.
         },
@@ -19429,6 +19455,8 @@
                 "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                   "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                       # the user's locale will be used if necessary for the given type.
+                      # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                      # information about the supported patterns.
                   "type": "A String", # The type of the number format.
                       # When writing, this field must be set.
                 },
@@ -21740,6 +21768,8 @@
                       "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                         "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                             # the user's locale will be used if necessary for the given type.
+                            # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                            # information about the supported patterns.
                         "type": "A String", # The type of the number format.
                             # When writing, this field must be set.
                       },
@@ -22567,6 +22597,8 @@
                       "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                         "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                             # the user's locale will be used if necessary for the given type.
+                            # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                            # information about the supported patterns.
                         "type": "A String", # The type of the number format.
                             # When writing, this field must be set.
                       },
@@ -23809,6 +23841,8 @@
           "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
             "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                 # the user's locale will be used if necessary for the given type.
+                # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                # information about the supported patterns.
             "type": "A String", # The type of the number format.
                 # When writing, this field must be set.
           },
@@ -24710,6 +24744,8 @@
                   "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                     "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                         # the user's locale will be used if necessary for the given type.
+                        # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                        # information about the supported patterns.
                     "type": "A String", # The type of the number format.
                         # When writing, this field must be set.
                   },
@@ -27021,6 +27057,8 @@
                         "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                           "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                               # the user's locale will be used if necessary for the given type.
+                              # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                              # information about the supported patterns.
                           "type": "A String", # The type of the number format.
                               # When writing, this field must be set.
                         },
@@ -27848,6 +27886,8 @@
                         "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                           "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                               # the user's locale will be used if necessary for the given type.
+                              # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                              # information about the supported patterns.
                           "type": "A String", # The type of the number format.
                               # When writing, this field must be set.
                         },
@@ -29120,6 +29160,8 @@
           "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
             "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                 # the user's locale will be used if necessary for the given type.
+                # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                # information about the supported patterns.
             "type": "A String", # The type of the number format.
                 # When writing, this field must be set.
           },
@@ -30021,6 +30063,8 @@
                   "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                     "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                         # the user's locale will be used if necessary for the given type.
+                        # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                        # information about the supported patterns.
                     "type": "A String", # The type of the number format.
                         # When writing, this field must be set.
                   },
@@ -32332,6 +32376,8 @@
                         "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                           "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                               # the user's locale will be used if necessary for the given type.
+                              # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                              # information about the supported patterns.
                           "type": "A String", # The type of the number format.
                               # When writing, this field must be set.
                         },
@@ -33159,6 +33205,8 @@
                         "numberFormat": { # The number format of a cell. # A format describing how number values should be represented to the user.
                           "pattern": "A String", # Pattern string used for formatting.  If not set, a default pattern based on
                               # the user's locale will be used if necessary for the given type.
+                              # See the [Date and Number Formats guide](/sheets/guides/formats) for more
+                              # information about the supported patterns.
                           "type": "A String", # The type of the number format.
                               # When writing, this field must be set.
                         },