Add CI configuration button on project page

CHANGELOG

@@ -26,6 +26,7 @@ v 8.11.0 (unreleased)
   - Multiple trigger variables show in separate lines (Katarzyna Kobierska Ula Budziszewska)
   - Profile requests when a header is passed
   - Add commit stats in commit api. !5517 (dixpac)
+  - Add CI configuration button on project page
   - Make error pages responsive (Takuya Noguchi)
   - Change requests_profiles resource constraint to catch virtually any file
 

app/views/projects/show.html.haml

@@ -43,6 +43,10 @@
       %li
         = link_to 'Contribution guide', contribution_guide_path(@project)
 
+    - if @repository.gitlab_ci_yml
+      %li
+        = link_to 'CI configuration', project_environments_path(@project)
+
     - if current_user && can_push_branch?(@project, @project.default_branch)
       - unless @repository.changelog
         %li.missing