Update references to mailing lists that have moved to Discourse.

diff --git a/openmp/docs/index.rst b/openmp/docs/index.rst
index d0929b8..8484be6 100644 (file)
--- a/openmp/docs/index.rst
+++ b/openmp/docs/index.rst
@@ -3,7 +3,8 @@
 .. note::
    This document is a work in progress and most of the expected content is not
    yet available. While you can expect changes, we always welcome feedback and
-   additions. Please contact, e.g., through ``openmp-dev@lists.llvm.org``.
+   additions. Please post on the `Discourse forums (Runtimes - 
+   OpenMP) <https://discourse.llvm.org/c/runtimes/openmp/35>`__..
 
 .. toctree::
    :hidden: