docs(2014-12-13-simple-post.md): add ``` version code block
docs(2014-12-13-simple-post.md): add ``` version code block

junglehaw/junglehaw.github.io,Fmajor/freshman21,refu0523/refu0523.github.io,mukeshyadav-cdac/code_myntra_blog,ubuntumac/ubuntumac.github.io,mukeshyadav-cdac/code_myntra_blog,Fmajor/freshman21,Fmajor/freshman21,Fmajor/freshman21,junglehaw/junglehaw.github.io,Fmajor/freshman21,maRce10/marce10.github.com,maRce10/marce10.github.com,junglehaw/junglehaw.github.io,yulijia/freshman21,refu0523/refu0523.github.io,mukeshyadav-cdac/code_myntra_blog,Fmajor/freshman21,maRce10/marce10.github.com