README.md: added 'Gem Version' bage
README.md: globally updated.
action/network refactoring. Deprecated 'bound_to' argument
README.md: 'Getting help' section added
README.md: Fixed mistakes
Merge branch 'develop'. Now 'master' is not stable, 'develop' is not needed

* develop:
  action/network refactoring. Deprecated 'bound_to' argument
Merge branch 'readme-renew'

* readme-renew:
  README.md: Fixed mistakes
  README.md: 'Getting help' section added
  README.md: globally updated.
  README.md: added 'Gem Version' bage