Merge pull request #68 from britter/brew-page

Add tldr page for brew package manager
Add brew switch example.
Remove optional-braces.
Remove ALL optional-braces this time.
Merge pull request #70 from naxoc/master

Add brew switch example.
use console instead of deprecated util.puts/error
Merge pull request #71 from queckezz/update/util-to-console

use console instead of deprecated util.puts/error
Add tldr page for mv
Remove path specific entries in mv page, as discussed in https://github.com/rprieto/tldr/pull/69