Merge pull request #4369 from zeehio/patch-1

doc/update/5.0-to-5.1.md

@@ -41,6 +41,7 @@ sudo -u git -H cp config/puma.rb.example config/puma.rb
 sudo -u git -H bundle install --without development test postgres --deployment
 sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production
 sudo -u git -H bundle exec rake migrate_merge_requests RAILS_ENV=production
+sudo -u git -H bundle exec rake assets:precompile RAILS_ENV=production
 ```
 
 ### 5. Update init.d script with a new one