docs: update generated docs (#981)

diff --git a/docs/dyn/container_v1beta1.projects.zones.html b/docs/dyn/container_v1beta1.projects.zones.html
index 51c9dce..013aecc 100644
--- a/docs/dyn/container_v1beta1.projects.zones.html
+++ b/docs/dyn/container_v1beta1.projects.zones.html
@@ -111,30 +111,34 @@
   An object of the form:
 
     { # Kubernetes Engine service configuration.
+    "validNodeVersions": [ # List of valid node upgrade target versions, in descending order.
+      "A String",
+    ],
+    "defaultImageType": "A String", # Default image type.
+    "validMasterVersions": [ # List of valid master versions, in descending order.
+      "A String",
+    ],
+    "validImageTypes": [ # List of valid image types.
+      "A String",
+    ],
     "channels": [ # List of release channel configurations.
       { # ReleaseChannelConfig exposes configuration for a release channel.
-        "defaultVersion": "A String", # The default version for newly created clusters on the channel.
-        "availableVersions": [ # List of available versions for the release channel.
-          { # AvailableVersion is an additional Kubernetes versions offered
-              # to users who subscribed to the release channel.
+        "availableVersions": [ # Deprecated.
+            # This field has been deprecated and replaced with the valid_versions
+            # field.
+          { # Deprecated.
             "reason": "A String", # Reason for availability.
             "version": "A String", # Kubernetes version.
           },
         ],
         "channel": "A String", # The release channel this configuration applies to.
+        "defaultVersion": "A String", # The default version for newly created clusters on the channel.
+        "validVersions": [ # List of valid versions for the channel.
+          "A String",
+        ],
       },
     ],
     "defaultClusterVersion": "A String", # Version of Kubernetes the service deploys by default.
-    "validImageTypes": [ # List of valid image types.
-      "A String",
-    ],
-    "validNodeVersions": [ # List of valid node upgrade target versions.
-      "A String",
-    ],
-    "validMasterVersions": [ # List of valid master versions.
-      "A String",
-    ],
-    "defaultImageType": "A String", # Default image type.
   }</pre>
 </div>