Regen all docs. (#700)

* Stop recursing if discovery == {}

* Generate docs with 'make docs'.
diff --git a/docs/dyn/cloudbuild_v1.html b/docs/dyn/cloudbuild_v1.html
index f71c4d6..42dcf4d 100644
--- a/docs/dyn/cloudbuild_v1.html
+++ b/docs/dyn/cloudbuild_v1.html
@@ -72,7 +72,7 @@
 
 </style>
 
-<h1><a href="cloudbuild_v1.html">Google Cloud Container Builder API</a></h1>
+<h1><a href="cloudbuild_v1.html">Cloud Build API</a></h1>
 <h2>Instance Methods</h2>
 <p class="toc_element">
   <code><a href="cloudbuild_v1.operations.html">operations()</a></code>