Move "Only allow merge requests to be merged if the build succeeds" to new location

app/views/projects/_merge_request_settings.html.haml

@@ -11,4 +11,4 @@
           %br
           %span.descr
             Builds need to be configured to enable this feature.
-            = link_to icon('question-circle'), help_page_path('workflow/merge_requests', anchor: 'only-allow-merge-requests-to-be-merged-if-the-build-succeeds')
+            = link_to icon('question-circle'), help_page_path('user/project/merge_requests/merge_when_build_succeeds', anchor: 'only-allow-merge-requests-to-be-merged-if-the-build-succeeds')

doc/user/project/merge_requests.md

 # Merge Requests
-Merge requests allow you to exchange changes you made to source code
-
-## Only allow merge requests to be merged if the build succeeds
-
-You can prevent merge requests from being merged if their build did not succeed
-in the project settings page.
-
-![only_allow_merge_if_build_succeeds](merge_requests/img/only_allow_merge_if_build_succeeds.png)
-
-Navigate to project settings page and select the `Only allow merge requests to be merged if the build succeeds` check box.
-
-Please note that you need to have builds configured to enable this feature.
+Merge requests allow you to exchange changes you made to source code and
+collaborate with other people on the same project.
 ## Checkout merge requests locally

doc/user/project/merge_requests/merge_when_build_succeeds.md

@@ -26,3 +26,21 @@ When the builds are retried and succeed on the second try, the merge request
 will automatically be merged after all. When the merge request is updated with
 new commits, the automatic merge is automatically canceled to allow the new
 changes to be reviewed.
+
+## Only allow merge requests to be merged if the build succeeds
+
+> **Note:**
+You need to have builds configured to enable this feature.
+
+You can prevent merge requests from being merged if their build did not succeed.
+
+Navigate to your project's settings page, select the
+**Only allow merge requests to be merged if the build succeeds** check box and
+hit **Save** for the changes to take effect.
+
+![Only allow merge if build succeeds settings](img/merge_when_build_succeeds_only_if_succeeds_settings.png)
+
+From now on, every time the build fails you will not be able to merge the merge
+request from the UI, until you make the build pass.
+
+![Only allow merge if build succeeds msg](img/merge_when_build_succeeds_only_if_succeeds_msg.png)