Update README.md
Backslash escape fix

Backslash is a escape character in JSON.

http://stackoverflow.com/a/19176131/2099835

This also make my IDE stop complain about syntax errors.
Merge pull request #206 from gmsantosxl/master

Backslash escape fix
Merge branch 'master' into 1.1
Merge branch 'master' into 1.2
Merge branch '1.1' into 1.2