Update mailing list references to lists.llvm.org

llvm-svn: 244000
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 77eb2e3..fc3f9fc 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -156,4 +156,4 @@
 
 If you have any questions or comments about Clang, please feel free to
 contact us via the `mailing
-list <http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev>`_.
+list <http://lists.llvm.org/mailman/listinfo/cfe-dev>`_.