document managing ruby patchlevels with alias
State the expected ruby version and gemset
Update example
Merge pull request #2245 from mstriemer/patch-1

document managing ruby patchlevels with alias
fix the displayed autolibs mode - it is enabled
Merge branch 'master' of github.com:wayneeseguin/rvm
improve __rvm_try_sudo to add sbin paths to PATH only when missing