Some new documentation.
Fixed an error in AutoDoc docu.
Added first part of markdown interpreter.
Added first version of markdown like syntax.

What works: Lists, emphasise, math.

Part of #48
Added marking for lists, but deaktivated it

since it does not work properly.
Added documentation for markdownlike syntax extension.
Fixed errors in markdown doc.
Markdown for descr/returns, no declare/install scan after @End...
Intro lines to maketest.g