[TYPO3-doc] Extension documentation

[Philipp Gampe]

Hi Martin et al.

Martin Bless wrote:

> And, just as a quick idea, here's a simple way to make a bunch of
> screenshots "clickable":
> 
> http://mbless.de/4us/typo3-oo2rest/04-more-real-life-examples-in-ff8700-
high-contrast-4/01-egovapi/manual-simplified-table-markup.rst.html#a-little-
example-gallery

If there is none, we should provide a "shorthand" syntax for this. I think 
this will be a generall need. Screenshots should be taken in full size and 
then rendered in lower size if needed by the current view (PDF, HTML, 
whatever).

Best regards
-- 
Philipp Gampe