mikeal/request — pull request #810 by mikermcneil (2014-02-12 18:39:55+00:00)
Title: add some exposition to mpu example in README.md

This is re @mikeal's comment here:
https://github.com/mikeal/request/issues/345#issuecomment-13998419

This updates the mpu example in the README with some more comments and a callback to make the usage unmistakably clear for beginners and especially forgetful developers (e.g. @mikermcneil)