quchen/articles — pull request #10 by strout (2014-03-20 01:58:42+00:00)
Title: Fix typo in lens-infix-operators.md

I noticed the second example for `^?!` accidentally used `^?` instead.

I don't know why the last line of the file is being changed like that; maybe Github's built-in editor added a newline at the end?