Merge branch 'approves-docs' into 'master'

Documentation for approves feature

See merge request !418

app/views/projects/merge_requests/show/_approve.html.haml

 .clearfix
   - unless @merge_request.approved_by?(current_user)
-    .pull-left
+    .append-bottom-10
       = form_for [:approve, @project.namespace.becomes(Namespace), @project, @merge_request], method: :post do |f|
         = f.submit "Approve Merge Request", class: "btn btn-reopen approve-btn"
-
-  - if @merge_request.approvals.any?
-    .pull-left.approved-by-users
-      Approved by
-      - @merge_request.approved_by_users.each do |user|
-        = link_to_member(@project, user, name: false, size: 24)
-
-%br
 %p This merge request must be approved by #{pluralize(@merge_request.approvals_required, 'user')} before it can be merged

app/views/projects/merge_requests/show/_mr_accept.html.haml

@@ -49,6 +49,11 @@
             %strong
               = link_to "command line", "#modal_merge_info", class: "how_to_merge_link vlink", title: "How To Merge", "data-toggle" => "modal"
 
+      - if @merge_request.approvals.any?
+        .approved-by-users
+          Approved by
+          - @merge_request.approved_by_users.each do |user|
+            = link_to_member(@project, user, name: false, size: 24)
 
   .automerge_widget.no_satellite.hide
     %p

doc/workflow/README.md

@@ -4,6 +4,7 @@
 - [Project forking workflow](forking_workflow.md)
 - [Project Features](project_features.md)
 - [Authorization for merge requests](authorization_for_merge_requests.md)
+- [Approval for merge requests](approval_for_merge_requests.md)
 - [Rebase before merge](rebase_before_merge.md)
 - [Groups](groups.md)
 - [Share projects with other groups](share_projects_with_other_groups.md)

doc/workflow/approval_for_merge_requests.md

+# Approval for merge requests
+
+Usually you accept merge request if it is ready and reviewed. But in certain 
+cases you want to be sure that every merge request will be reviewed by several 
+people before it gets merged. You can use GitLab approve feature for enforcing such 
+workflow. To enable it you should go to project settings page and set 
+"Approvals required" field to numeric value. For example if you set it to number 3 
+that means each merge request should receive 3 approves from different people 
+before it can be merged via user interface.
+
+
+![approve_setting](approval_for_merge_requests/settings.png)
+
+After you set approves value you can see on merge request page "Approve" button
+instead of "Accept" one. As soon as merge request get enough approvals it will 
+be available for merge with user interface.
+
+![approve_merge_request](approval_for_merge_requests/mr.png)