Fix Upgrading.md markup
Fix Upgrading.md markup

Mange/roadie-rails,Mange/roadie-rails,rafaelfranca/roadie-rails,rafaelfranca/roadie-rails,Mange/roadie-rails,tjschuck/roadie-rails,Mange/roadie-rails,tjschuck/roadie-rails,tjschuck/roadie-rails,rafaelfranca/roadie-rails