Add proper markdown to format code blocks

I added the required markdown to format the sections of code as proper code blocks. I'm currently trying to implement this feature in my site, and the documentation is painful to read.

I'm only using this doc page at the moment so I haven't formatted the others, but I'd be happy to do that when I have a minute if you'd like.
Update AIM.markdown

Update AIM docs so code blocks are more readable
Update ARB.markdown

Update ARB docs so code blocks are more readable
Update CP.markdown

Update CP docs so that code blocks are more readable
Update DPM.markdown

Update docs so inline code is more easily recognized
Update SIM.markdown

Update SIM markdown so code blocks are more readable
Update TD.markdown

Update TD markdown so code blocks are more readable.
Update AIM.markdown

add PHP flag for syntax highlighting
Update ARB.markdown

Add PHP flag for syntax highlighting.
Update CIM.markdown

Add PHP flag for syntax highlighting.
Update CP.markdown

Add PHP flag for syntax highlighting.
Update SIM.markdown

Add PHP flag for syntax highlighting
Update TD.markdown

Add PHP flag for syntax highlighting
Merge pull request #24 from adear11/patch-1

Thanks for the PR adear1 and thanks to George for the review!

Brian