Add seperate link for organizations

Author: n194

templates/base/head_navbar.tmpl

@@ -21,6 +21,8 @@
 		{{if .ShowMilestonesDashboardPage}}<a class="item {{if .PageIsMilestonesDashboard}}active{{end}}" href="{{AppSubUrl}}/milestones">{{.i18n.Tr "milestones"}}</a>{{end}}
 		{{end}}
 		<a class="item {{if .PageIsExplore}}active{{end}}" href="{{AppSubUrl}}/explore/repos">{{.i18n.Tr "explore"}}</a>
+    {{else if .IsLandingPageOrganizations}}
+		<a class="item {{if .PageIsExplore}}active{{end}}" href="{{AppSubUrl}}/explore/organizations">{{.i18n.Tr "explore"}}</a>
 	{{else}}
 		<a class="item {{if .PageIsExplore}}active{{end}}" href="{{AppSubUrl}}/explore/repos">{{.i18n.Tr "explore"}}</a>
 	{{end}}