Update Arch linux packaging instructions for 0.18.
Update Arch linux packaging instructions for 0.18.
avh4/elm-format,nukisman/elm-format-short,nukisman/elm-format-short,avh4/elm-format,nukisman/elm-format-short,nukisman/elm-format-short,avh4/elm-format,avh4/elm-format,nukisman/elm-format-short