Fix typo

Author: ongardie

index.html

@@ -764,7 +764,7 @@ <h3>Courses teaching Raft</h3>
     <a href="http://www.cs.utah.edu/~stutsman/cs6963/">CS 6963: Distributed Systems</a>,
     <a href="http://www.cs.utah.edu/~stutsman/">Ryan Stutsman</a>
     (<a href="https://twitter.com/rstutsman">@rstutsman</a>).
-    Will includes something about Raft (TBD).
+    Will include something about Raft (TBD).
     (Fall 2015, ...)
   </li>