Regen all docs. (#700)

* Stop recursing if discovery == {}

* Generate docs with 'make docs'.
diff --git a/docs/dyn/books_v1.onboarding.html b/docs/dyn/books_v1.onboarding.html
index 85ed21b..b21aee3 100644
--- a/docs/dyn/books_v1.onboarding.html
+++ b/docs/dyn/books_v1.onboarding.html
@@ -249,6 +249,7 @@
             "small": "A String", # Image link for small size (width of ~300 pixels). (In LITE projection)
             "thumbnail": "A String", # Image link for thumbnail size (width of ~128 pixels). (In LITE projection)
           },
+          "comicsContent": True or False, # Whether the volume has comics content.
           "authors": [ # The names of the authors and/or editors for this volume. (In LITE projection)
             "A String",
           ],
@@ -270,9 +271,9 @@
           "samplePageCount": 42, # Total number of sample pages as per publisher metadata.
           "readingModes": "", # The reading modes available for this volume.
           "printedPageCount": 42, # Total number of printed pages in generated pdf representation.
-          "averageRating": 3.14, # The mean review rating for this volume. (min = 1.0, max = 5.0)
-          "infoLink": "A String", # URL to view information about this volume on the Google Books site. (In LITE projection)
           "ratingsCount": 42, # The number of review ratings for this volume.
+          "infoLink": "A String", # URL to view information about this volume on the Google Books site. (In LITE projection)
+          "averageRating": 3.14, # The mean review rating for this volume. (min = 1.0, max = 5.0)
         },
         "recommendedInfo": { # Recommendation related information for this volume.
           "explanation": "A String", # A text explaining why this volume is recommended.