Updated release notes for tooling.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154012 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index 64c6acb..e278142 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -91,6 +91,11 @@
 
 <p>Improved: <code>-Wformat</code>, <code>-Wempty-body</code>, ...</p>
 
+<h4 id="tooling">Tooling</h4>
+<!-- FIXME: add a link to the tooling documentation once that's written. -->
+<p>Added an API to enable clang-based standalone tools, including initial build
+system integration.</p>
+
 <!-- = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = -->
 <h3 id="cchanges">C Language Changes in Clang</h3>
 <!-- = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = -->