Create subdirectory for projects

content/projekte/hack-n-fun/bastelideen.md

content/projekte/hack-n-fun/freizeiten.md

content/projekte/hack-n-fun/workshops.md

content/projekte/indiedact/handreichung.md

content/projekte/schul-frei/junge-menschen-foss.md

content/projekte/schul-frei/konferenzen.md

content/projekte/schul-frei/schulen-foss.md