Add note about giving rights to users

README.md

@@ -105,6 +105,13 @@ By running `bin/rails <command>` you can trigger some helpful actions, such as
   FetchConferenceDataJob.perform_now("38c3")
   ~~~
 
+- Promote user to shiftcoordinator
+  ~~~ruby
+  u = User.find_by(name:"username_here")
+  u.shiftcoordinator = true
+  u.save!
+  ~~~
+
 - Reset user password
   ~~~ruby
   pw = SecureRandom.alphanumeric(12)