Fix links to Code of Conduct - point both to our CoC (which in turn points to CNCF CoC).
Remove invalid .md from CODEOWNERS.
Signed-off-by: Tim deBoer <git@tdeboer.ca>
We're overdue adopting a governance policy. Full credit for this content goes to @slemeur,
I've just done the final markdown cleanup and PR creation.
Signed-off-by: Tim deBoer <git@tdeboer.ca>