[GRASS-dev] Manpage HTML markup consistency

[Patton, Eric]

Hamish:
>some modules do actually still have interactive modes available, so
>don't just remove blindly. In the past I have <!-- commented out -->
>sections I wasn't sure about until pouring through the module code.

Right, of course. I've encountered a few of these commented sections 
already and left them unaltered for future demystifying. In a few cases
I have inserted a few of my own to make some edits clear.

~ Eric.