fix(client:footer): fix docs link (html)

closes #2501
[skip ci]

Author: Awk34

Diff for: templates/app/client/components/footer/footer(html).html

@@ -1,6 +1,6 @@
 <div class="container">
   <p>Angular Fullstack v<%= rootGeneratorVersion() %> |
-    <a href="http://angular-fullstack.github.io/generator-angular-fullstack">Documentation</a> |
+    <a href="http://angular-fullstack.github.io/">Documentation</a> |
     <a href="https://gitter.im/DaftMonk/generator-angular-fullstack">Chat on Gitter</a> |
     <a href="https://github.com/angular-fullstack/generator-angular-fullstack/issues?state=open">Issues</a> |
     <a href="https://opencollective.com/angular-fullstack">Donate to our Open Collective</a>