docs: docs update (#911)

Thank you for opening a Pull Request! Before submitting your PR, there are a few things you can do to make sure it goes smoothly:
- [ ] Make sure to open an issue as a [bug/issue](https://github.com/googleapis/google-api-python-client/issues/new/choose) before writing your code!  That way we can discuss the change, evaluate designs, and agree on the general idea
- [ ] Ensure the tests and linter pass
- [ ] Code coverage does not decrease (if any source code was changed)
- [ ] Appropriate docs were updated (if necessary)

Fixes #<issue_number_goes_here> 🦕
diff --git a/docs/dyn/books_v1.dictionary.html b/docs/dyn/books_v1.dictionary.html
index 47806af..309bc18 100644
--- a/docs/dyn/books_v1.dictionary.html
+++ b/docs/dyn/books_v1.dictionary.html
@@ -89,16 +89,16 @@
   An object of the form:
 
     {
-    "items": [ # A list of offline dictionary metadata.
+    &quot;items&quot;: [ # A list of offline dictionary metadata.
       {
-        "encrypted_key": "A String",
-        "version": "A String",
-        "language": "A String",
-        "download_url": "A String",
-        "size": "A String",
+        &quot;download_url&quot;: &quot;A String&quot;,
+        &quot;encrypted_key&quot;: &quot;A String&quot;,
+        &quot;language&quot;: &quot;A String&quot;,
+        &quot;size&quot;: &quot;A String&quot;,
+        &quot;version&quot;: &quot;A String&quot;,
       },
     ],
-    "kind": "dictionary#metadata", # Resource type.
+    &quot;kind&quot;: &quot;dictionary#metadata&quot;, # Resource type.
   }</pre>
 </div>