just a Pic test
Change the url of pic
Update the URL again
Delete the Test
Create 2014-02-09-Xuxiang-CodingBat.md
Xuxiang's Codingbat Exercise!
Add a blank line before code.
Change the Links of the images.
Merge pull request #236 from maoxuxiang/gh-pages

Please update Xuxiang's Codingbat Assignment