Fixing query param used (#3250)

Author: kushthedude

app/templates/index.hbs

@@ -29,7 +29,7 @@
     <div class="ui hidden divider"></div>
     <div class="ui centered grid">
       <div class="row">
-        {{#link-to "explore" (query-params cfs=true) class='ui blue button'}}{{t 'Show more calls for speakers'}}{{/link-to}}
+        {{#link-to "explore" (query-params cfs='open') class='ui blue button'}}{{t 'Show more calls for speakers'}}{{/link-to}}
       </div>
     </div>
   {{/if}}