Add message about using rbenv or rvm
Add message about using rbenv or rvm

q-m/appsignal,appsignal/appsignal-ruby,appsignal/appsignal-ruby,matrinox/appsignal-ruby,appsignal/appsignal-ruby,matrinox/appsignal-ruby,appsignal/appsignal,stijnster/appsignal-ruby,rranelli/appsignal,appsignal/appsignal-ruby,appsignal/appsignal,codefarmdev/haystack,subvisual/appsignal,stijnster/appsignal-ruby,matrinox/appsignal-ruby,stijnster/appsignal-ruby