Clarify the benefits of arrows
Clarify the benefits of arrows

This Reddit comment made me realise that the explanation of the benefits of arrows was misleading

https://www.reddit.com/r/haskell/comments/4fkkzo/when_does_one_consider_using_arrows/d2a3kux

I've adjusted the explanation to make it a bit clearer that it's not arrows per se they provide the benefit, but that if you have the benefit it may only be an arrow.
ocharles/blog,ocharles/blog