Update CONTRIBUTING.md
Update CONTRIBUTING.md

familer -> familiar
mAiNiNfEcTiOn/pioneer,bruz/pioneer,mAiNiNfEcTiOn/pioneer,bluespeckfinancial/pioneer,bruz/pioneer,bluespeckfinancial/pioneer,mojotech/pioneer,mojotech/pioneer,mojotech/pioneer,mAiNiNfEcTiOn/pioneer,bluespeckfinancial/pioneer,bruz/pioneer