Regen all docs. (#700)

* Stop recursing if discovery == {}

* Generate docs with 'make docs'.
diff --git a/docs/dyn/adexchangebuyer2_v2beta1.html b/docs/dyn/adexchangebuyer2_v2beta1.html
index 8b29501..75c2ead 100644
--- a/docs/dyn/adexchangebuyer2_v2beta1.html
+++ b/docs/dyn/adexchangebuyer2_v2beta1.html
@@ -80,6 +80,11 @@
 <p class="firstline">Returns the accounts Resource.</p>
 
 <p class="toc_element">
+  <code><a href="adexchangebuyer2_v2beta1.bidders.html">bidders()</a></code>
+</p>
+<p class="firstline">Returns the bidders Resource.</p>
+
+<p class="toc_element">
   <code><a href="#new_batch_http_request">new_batch_http_request()</a></code></p>
 <p class="firstline">Create a BatchHttpRequest object based on the discovery document.</p>
 <h3>Method Details</h3>