v3.0 - Finale Abgabe

Merge branch 'grabowski/last-changes-to-documents'

* grabowski/last-changes-to-documents:
  submissions: add all docs for the third iteration deliverable
  fix a few document errors
  fix typos
  docs: fix external document references
  fix a few typos

End of second iteration

Merge remote-tracking branch 'origin/master'

* origin/master:
  fixed typo