ReleaseNotes: note Sphinx migration.

llvm-svn: 172955

diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
index bc231857031f74bbcc444e9d65438d5e7342a747..e8ea5c9488861686e45a77596a92cd712ca560d7 100644 (file)
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -47,6 +47,11 @@ Non-comprehensive list of changes in this release
   archives) have been removed. Any existing clients of these features should
   move to using a linker with integrated LTO support.
 
+* LLVM and Clang's documentation has been migrated to the `Sphinx
+  <http://sphinx-doc.org/>`_ documentation generation system which uses
+  easy-to-write reStructuredText. See `llvm/docs/README.txt` for more
+  information.
+
 * ... next change ...
 
 .. NOTE