➜ ~ brew cask install https://raw.githubusercontent.com/Watson1978/QLMarkdownGFM/master/qlmarkdown-gfm.rb
Error: Calling brew cask install is disabled! Use brew install [--cask] instead.
➜ ~ brew install --cask https://raw.githubusercontent.com/Watson1978/QLMarkdownGFM/master/qlmarkdown-gfm.rb
Traceback (most recent call last):
'brew extract' or 'brew create' and 'brew tap-new' to create a formula file in a tap on GitHub instead.: Invalid usage: Non-checksummed download of qlmarkdown-gfm formula file from an arbitrary URL is unsupported! (UsageError)
'brew extract' or 'brew create' and 'brew tap-new' to create a formula file in a tap on GitHub instead.: Invalid usage: Non-checksummed download of qlmarkdown-gfm formula file from an arbitrary URL is unsupported! (UsageError)