Fix info about adding/removing feeds. (#601)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Author: rodrigogiraoserrao

config/index.html.tmpl

@@ -134,8 +134,8 @@ src="/static/images/python-logo.gif" alt="homepage" border="0" /></a>
 
 <li>
     <i>
-    To request addition or removal:<br />
-    Open an issue on <a href="https://github.com/python/planet/issues">github</a><br />
+    To request addition or removal,
+    <a href="https://github.com/python/planet">open a PR or issue</a>
     </i>
 </li>
           </ul></li>

config/titles_only.html.tmpl

@@ -117,8 +117,13 @@ src="/static/images/python-logo.gif" alt="homepage" border="0" /></a>
 <li><a href="<TMPL_VAR link ESCAPE="HTML">" title="<TMPL_VAR title ESCAPE="HTML">"><TMPL_VAR name></a>
 </li>
 </TMPL_LOOP>
-<li> <i>To request addition or removal:<br />
-e-mail planet at python.org (note, responses can take up to a few days)</i></li>
+
+<li>
+    <i>
+    To request addition or removal,
+    <a href="https://github.com/python/planet">open a PR or issue</a>
+    </i>
+</li>
           </ul></li>
       </ul>
     </div>