fix mirror typo

templates/repo/mirror.tmpl

@@ -3,7 +3,7 @@
 <div class="container" id="body">
     <form action="/repo/create" method="post" class="form-horizontal card" id="repo-create">
         {{.CsrfTokenHtml}}
-        <h3>Import Repository</h3>
+        <h3>Create Repository Mirror</h3>
         <div class="alert alert-danger form-error{{if .HasError}}{{else}} hidden{{end}}">{{.ErrorMsg}}</div>
         <div class="form-group">
             <label class="col-md-2 control-label">From<strong class="text-danger">*</strong></label>