Fix README example code typo

Hello @azulus, 

Please review the following commits I made in branch 'kylehardgrave-fix-readme-typo'.

497c161683451eb014c1360279d05b5e94497897 (2013-06-04 16:41:25 -0700)
Corrected function name typo in README


R=@azulus
VISIBLE_CHANGES=Fix README example code typo