added RICOH GitHub Discussions

Author: codetricity

.DS_Store

@@ -415,7 +415,8 @@ <h4 class="mb-1">Looking For RICOH Information?</h4>
                     available at
                     <a href="https://github.com/ricohapi/">GitHub</a>,
                     <a href="https://docs.ricoh360.com/">Docs</a>,
-                    <a href="https://support.ricoh360.com/">Support</a>
+                    <a href="https://support.ricoh360.com/">Support</a>,
+                    <a href="https://github.com/ricohapi/awesome-theta/discussions">GitHub Discussions</a>
                   </p>
                 </div>
               </div>