Merge branch 'subscription-link' into 'master'

Add links to the quick help list

Add links in the quick help list to the pricing and feature comparison pages on about.gitlab.com.  See #1969

cc @sytse

See merge request !1525

CHANGELOG

@@ -54,6 +54,7 @@ v 7.8.0 (unreleased)
   - Link head panel titles to relevant root page.
   - Allow users that signed up via OAuth to set their password in order to use Git over HTTP(S).
   - Show users button to share their newly created public or internal projects on twitter
+  - Add quick help links to the GitLab pricing and feature comparison pages.
 
 v 7.7.2
   - Update GitLab Shell to version 2.4.2 that fixes a bug when developers can push to protected branch

app/views/help/index.html.haml

@@ -42,3 +42,9 @@
         %li
           Use
           = link_to 'shortcuts', '#', onclick: 'Shortcuts.showHelp(event)'
+        %li
+          Get a
+          = link_to 'support subscription', 'https://about.gitlab.com/pricing/'
+        %li
+          = link_to 'Compare', 'https://about.gitlab.com/features/#compare'
+          GitLab editions