webhook: blank page for organization Discord type

templates/org/settings/hook_new.tmpl

@@ -19,6 +19,7 @@
 				<div class="ui attached segment">
 					{{template "repo/settings/hook_gogs" .}}
 					{{template "repo/settings/hook_slack" .}}
+					{{template "repo/settings/hook_discord" .}}
 				</div>
 
 				{{template "repo/settings/hook_history" .}}