homebrew-protolint

How do I install these formulae?

brew install yoheimuta/protolint/protolint

Or brew tap yoheimuta/protolint and then brew install protolint.

Or install via URL (which will not receive updates):

brew install https://raw.githubusercontent.com/yoheimuta/homebrew-protolint/master/Formula/protolint.rb

Documentation

brew help, man brew or check Homebrew's documentation.