feat: update default resource links

Author: themightychris

html-templates/includes/site.resourcelinks.tpl

@@ -1,2 +1,3 @@
-<a class="dropdown-item" href="http://commons.codeforamerica.org/">{_ "CfA Commons"}</a>
+<a class="dropdown-item" href="https://brigade.codeforamerica.org">{_ "CfA Brigade Network Website"}</a>
+<a class="dropdown-item" href="https://discourse.codeforamerica.org/">{_ "CfA Brigade Network Forum"}</a>
 <a class="dropdown-item" href="http://opendata.stackexchange.com/">{_ "Open Data Stack Exchange"}</a>