Update README.md

Update README.md

Merge pull request #1 from voscarmv/develop

Updated video link and corrected README.md

Removed unnecessary routes and views.

Fixed some linter errors.

App model methods tested against opinions.

Update README.md

Update followings_controller_test.rb

Update followings_controller_test.rb

Update .rubocop.yml

Update README.md

Update README.md

Ignore npm files.

Fixed CSS linter errors.