Fix spelling Readme-nfn.md
Fix formaFix formatt
Fix <> in Readme-nfn.md
again
Add description to README-nfn.md
Add tutorial link to README-nfn.md
After having branched to residue-0.2.0, we sync with master and start a new dev-master for release 0.2.0
in struct interest_s, turned the corePropagates field into a flag bit (preparing kite)
had to undo some wrong refactoring, compiles again