add editorconfig

root = true

[*]

end_of_line = lf

insert_final_newline = true

charset = utf-8

indent_style = space

indent_size = 2

[{Gemfile,Rakefile,Guardfile,Procfile}]

trim_trailing_whitespace = true

[*.{js,hbs,rb,rake,ru,erb,haml,scss,sh,md}]

trim_trailing_whitespace = true

[*.yml]

trim_trailing_whitespace = false