Include mypy instructions in CONTRIBUTING.md (#4271)

* reupload

* Include mypy instructions

* delete file

* fixed trailing whitespaces

* options before file path

Co-authored-by: Christian Clauss <cclauss@me.com>

algobytewise committed 5y ago

ffa53c02a7da4ac4149a8ee1b14d4f023d2e2d78

Parent: 8e488dd

Committed by GitHub <noreply@github.com> on 3/19/2021, 10:29:54 AM