dea26d02b7
This was in the (soon to be archived) Homebrew/homebrew-bundle repository's `README`. There's some good content here that doesn't cleanly fit into the `brew` manpage so let's move it here. While we're here, let's de-emphasize `whalebrew` as it's not widely used and add commented-out deprecation warnings for its future deprecation.
Library
This directory contains all the code run by the official brew command in Homebrew and all formulae (package descriptions) in taps (repositories containing formulae) in Taps subdirectories.