Cask-Cookbook: fix `caskroom_path` description
Cask-Cookbook: fix `caskroom_path` description

From `cask.rb`:
```
    def caskroom_path
      @caskroom_path ||= Caskroom.path.join(token)
    end
```

MikeMcQuaid/brew,Homebrew/brew,Homebrew/brew,nandub/brew,nandub/brew,nandub/brew,JCount/brew,MikeMcQuaid/brew,nandub/brew,JCount/brew,MikeMcQuaid/brew,Homebrew/brew,JCount/brew,MikeMcQuaid/brew,Homebrew/brew,JCount/brew