Update conda-forge contributing guidance (#2134)
Update conda-forge contributing guidance (#2134)

Signed-off-by: James Campbell <1f5d57c840f6bc62c607eb3983b0ef428cfb4438@gmail.com>

Co-authored-by: Sam Bail <67f0a743338e6903e421210c756f7eb86971efd8@gmail.com>
Co-authored-by: Eugene Mandel <a36346cb9bda1bc68153ba321ad7fd499805df57@gmail.com>
great-expectations/great_expectations,great-expectations/great_expectations,great-expectations/great_expectations,great-expectations/great_expectations