ignore anatomy.htm
Fixed the replacement regex for anatomy.htm

The original regex changed all pipes | into backticks, but this was
incorrect for the following:
> data Value = Int  Int
>            | Bool Bool
The | should not be changed to a backtick.
Now, the regex replaces all strings |.*?| into `$1`
I used perl -pe instead of sed, since apparently sed does not support
the non-greedy expression.

Also added anatomyCheck.tex to gitignore, make clean