Add label to repo icons in explore page

Author: renbaoshuo

templates/explore/repo_list.tmpl

@@ -32,9 +32,9 @@
 							{{end}}
 						{{end}}
 						{{if .IsFork}}
-							{{svg "octicon-repo-forked"}}
+							<i class="ui icon tooltip" data-content="{{$.locale.Tr "repo.fork"}}" data-position="bottom center">{{svg "octicon-repo-forked"}}</i>
 						{{else if .IsMirror}}
-							{{svg "octicon-mirror"}}
+							<i class="ui icon tooltip" data-content="{{$.locale.Tr "mirror"}}" data-position="bottom center">{{svg "octicon-mirror"}}</i>
 						{{end}}
 					</div>
 				</div>