style(indexPage.template.html): change bad punctuation in documentation footer

PR  (#14792)

Author: ibriq

docs/config/templates/indexPage.template.html

@@ -220,12 +220,11 @@ <h4 class="search-results-group-heading">{{ key }}</h4>
         <p class="pull-right"><a back-to-top>Back to top</a></p>
 
         <p>
-          Super-powered by Google  ©2010-2016
-          ( <a id="version"
+          Super-powered by Google ©2010-2016
+          (<a id="version"
                ng-href="https://github.com/angular/angular.js/blob/master/CHANGELOG.md#{{versionNumber}}"
                ng-bind-template="v{{version}}" title="Changelog of this version of Angular JS">
-            </a>
-          )
+           </a>)
         </p>
         <p>
           Code licensed under