Add a note about notification for a project.

app/views/profiles/notifications/show.html.haml

@@ -31,12 +31,12 @@
 
 .clearfix
   %hr
+.row.all-notifications
+  .col-md-6
     %p
       You can also specify notification level per group or per project
       %br
       By default all projects and groups uses notification level set above
-.row.all-notifications
-  .col-md-6
     %h4 Groups:
     %ul.bordered-list
       - @group_members.each do |users_group|
@@ -44,6 +44,10 @@
         = render 'settings', type: 'group', membership: users_group, notification: notification
 
   .col-md-6
+    %p
+      To specify notification level per project of a group you belong to,
+      %br
+      you also need to be a member of the project
     %h4 Projects:
     %ul.bordered-list
       - @project_members.each do |project_member|