nav change to go with that

docs/_includes/docs-nav.html

@@ -61,7 +61,7 @@
     <li>
       <a href="#buttons">Buttons</a>
       <ul class="nav">
-        <li><a href="#buttons-defaults">Default buttons</a></li>
+        <li><a href="#buttons-options">Button options</a></li>
         <li><a href="#buttons-sizes">Sizes</a></li>
         <li><a href="#buttons-disabled">Disabled</a></li>
         <li><a href="#buttons-tags">Button tags</a></li>