Add links to CI setup documentation from project settings and builds pages

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

CHANGELOG

@@ -4,6 +4,7 @@ v 8.7.0 (unreleased)
   - Preserve time notes/comments have been updated at when moving issue
   - Make HTTP(s) label consistent on clone bar (Stan Hu)
   - Fix avatar stretching by providing a cropping feature
+  - Add links to CI setup documentation from project settings and builds pages
 
 v 8.6.1
   - Add option to reload the schema before restoring a database backup. !2807

app/views/projects/_builds_settings.html.haml

 %fieldset.builds-feature
   %legend
     Builds:
+
+  - unless @project.builds.any?
+    .form-group
+      .col-sm-offset-2.col-sm-10
+        %p Before you can use Builds (Continuous Integration) feature you need to setup it.
+        = link_to 'Get started with Builds', help_page_path('ci/quick_start', 'README'), class: 'btn btn-info'
+        %hr
+
   .form-group
     .col-sm-offset-2.col-sm-10
       %p Get recent application code using the following command:

app/views/projects/builds/index.html.haml

@@ -27,6 +27,9 @@
         = link_to 'Cancel running', cancel_all_namespace_project_builds_path(@project.namespace, @project),
           data: { confirm: 'Are you sure?' }, class: 'btn btn-danger', method: :post
 
+      - unless @project.builds.any?
+        = link_to 'Get started with Builds', help_page_path('ci/quick_start', 'README'), class: 'btn btn-info'
+
       = link_to ci_lint_path, class: 'btn btn-default' do
         = icon('wrench')
         %span CI Lint