add readme template help link

templates/repo/create.tmpl

@@ -80,7 +80,7 @@
           </div>
 
           <div class="inline field">
-            <label>{{.i18n.Tr "repo.readme"}}</label>
+            <label>{{.i18n.Tr "repo.readme"}} <a target="_blank" href="https://github.com/gogits/go-gogs-client/wiki/Repositories#litte-notes-on-readme-template"><span class="octicon octicon-question"></span></a></label>
             <div class="ui selection dropdown">
               <input type="hidden" name="readme" value="{{.readme}}">
               <div class="default text">{{.i18n.Tr "repo.readme_helper"}}</div>