sign (rms-open-letter#35)

untitaker · ehashman · web-flow · commit 2ea1a1510ed8 · 2021-03-23T12:01:44.000-07:00
Co-authored-by: Elana Hashman &lt;ehashman@users.noreply.github.com&gt;
diff --git a/index.md b/index.md
@@ -72,3 +72,4 @@ Signed,
 - Jerome Charaoui (Debian Developer, former FSF member)
 - Daniel Stone (freedesktop.org, Wayland)
 - Jonathan McDowell
+- Markus Unterwaditzer
