branch, checkout, merge docs

Author: schacon

_layouts/reference.html

@@ -58,8 +58,8 @@ <h3><a href="/basic">Basic Snapshotting</a></h3>
             <h3><a href="/branching">Branching and Merging</a></h3>
             <ul>
               <li><a href="/branching/#branch">branch</a></li>
+              <li><a href="/branching/#branch">checkout</a></li>
               <li><a href="/branching/#merge">merge</a></li>
-              <li><a href="/branching/#checkout">checkout</a></li>
               <li><a href="/branching/#log">log</a></li>
               <li><a href="/branching/#reset">reset</a></li>
             </ul>