Minor fixes to documentation - and Apache config file.

Hi,

This is the promised feedback from installing Groups myself - minor fixes for documentation and for sample Apache config file.

One thing I could not fix around github flavoured markdown formatting: in application.md, the code blocks render as plain text (and get squeezed on a single line) when inside a numbered list.  And explicitly fencing them off with triple back-tick breaks the step numbering.

Any pro-tip on the markdown to get around this?

One solution I have is to change the ordered list to an unordered list, but that then breaks the logic of the document...

Cheers,
Vlad