docs: add xlibdriver to table-of-contents

It's not so nice to have a hidden article, so let's add this one to the
TOC under "User Topics".

Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4630>

diff --git a/docs/contents.rst b/docs/contents.rst
index 2d44e147ce30190be16897edba239319c188b3a5..011f9a36b6d114798ebc443004e954726139e247 100644 (file)
--- a/docs/contents.rst
+++ b/docs/contents.rst
@@ -50,6 +50,7 @@
    postprocess
    application-issues
    viewperf
+   xlibdriver
 
 .. toctree::
    :maxdepth: 1