Add recipe for rake
Add hl-indent.

It is a minor mode for highlighting irregular indentation, which is
indentation not necessarily at multiples of some number.
Merge pull request #2323 from ikirill/add-hl-indent

Add hl-indent.
Merge pull request #2320 from asok/rake-recipe

Add recipe for rake
Add recipe
Merge pull request #2324 from wasamasa/recipe-form-feed

Add recipe