Update one more 2.7 to 2.8.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102978 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index ecd1884..94e5c7b 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -43,7 +43,7 @@
 <div class="doc_text">
 
 <p>This document contains the release notes for the LLVM Compiler
-Infrastructure, release 2.7.  Here we describe the status of LLVM, including
+Infrastructure, release 2.8.  Here we describe the status of LLVM, including
 major improvements from the previous release and significant known problems.
 All LLVM releases may be downloaded from the <a
 href="http://llvm.org/releases/">LLVM releases web site</a>.</p>