[repo/header_gin] Fix registration link

templates/repo/header_gin.tmpl

@@ -7,7 +7,7 @@
 						{{if $.IsRepositoryAdmin}}
 							{{if $.IsDOIReady}} {{/* Ready to (re)register: Show button */}}
 							<div class="ui labeled button" tabindex="0">
-								<a class="ui basic button" href="/{{.Owner.Name}}/{{.Name}}/doi"><i class="octicon octicon-squirrel"></i> Request DOI</a>
+								<a class="ui basic button" href="/{{.Repository.Owner.Name}}/{{.Repository.Name}}/doi"><i class="octicon octicon-squirrel"></i> Request DOI</a>
 							</div>
 							{{else if not $.DOI}} {{/*Link to registration instructions*/}}
 								<div class="ui labeled button	" tabindex="0">