Fix Typo in 'objc changes' anchor.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151978 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index 81b12c0..60a3f73 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -29,7 +29,7 @@
       <li><a href="#majorfeatures">Major New Features</a></li>
       <li><a href="#cchanges">C Language Changes</a></li>
       <li><a href="#cxxchanges">C++ Language Changes</a></li>
-      <li><a href="#objchanges">Objective-C Language Changes</a></li>
+      <li><a href="#objcchanges">Objective-C Language Changes</a></li>
       <li><a href="#apichanges">Internal API Changes</a></li>
     </ul>
   </li>