language: ruby
rvm:
  - 2.2.6
before_install:
  - npm install -g svgo
notifications:
  email: false
  slack: sixtwothree:yATLmjTW15443qR7jbCWr3RO

language: ruby
rvm:
  - 2.2.6
  - 2.3.3
  - 2.4.0
before_install:
  - npm install -g svgo
notifications:
  email: false
  slack: sixtwothree:yATLmjTW15443qR7jbCWr3RO

Add Ruby versions to Travis CI config.
Add Ruby versions to Travis CI config.
