formatting README instructions for config/environments/test/rb, adding mocha to instructions
formatting README instructions for config/environments/test/rb, adding mocha to instructions

openeducation/clearance,thoughtbot/clearance,rubyist/clearance,pedrosmmoreira/clearance,janusnic/clearance,naveed-ahmad/clearance,sferik/clearance,crowdtap/clearance,naveed-ahmad/clearance,thoughtbot/clearance,thoughtbot/clearance,crowdtap/clearance,benlivermore/clearance,naveed-ahmad/clearance,crowdtap/clearance,rubyist/clearance,janusnic/clearance,pedrosmmoreira/clearance,janusnic/clearance,zernie/clearance,zernie/clearance,pedrosmmoreira/clearance,benlivermore/clearance,zernie/clearance,benlivermore/clearance