NumPy 1.16.6 release.

1. 6ab8b85 DOC: add a Code of Conduct document. by Ralf Gommers · 7 years ago
2. a193dcd Make fixes requested by @rgommers by Eric Wieser · 7 years ago
3. 471ada7 fixes from review by mattip · 7 years ago
4. 9f227da reformat as html comments by mattip · 7 years ago
5. d7c9924 DOC: add templates for issues and PR by mattip · 7 years ago