Mention Codespace in contribution guide
Mention Codespace in contribution guide

Vasfed/rails,BlakeWilliams/rails,MSP-Greg/rails,kddeisz/rails,Stellenticket/rails,kmcphillips/rails,lcreid/rails,georgeclaghorn/rails,esparta/rails,lcreid/rails,georgeclaghorn/rails,georgeclaghorn/rails,kmcphillips/rails,yawboakye/rails,Erol/rails,rails/rails,Envek/rails,lcreid/rails,Edouard-chin/rails,yahonda/rails,kddeisz/rails,kddeisz/rails,BlakeWilliams/rails,MSP-Greg/rails,Vasfed/rails,georgeclaghorn/rails,esparta/rails,Envek/rails,Envek/rails,yahonda/rails,rails/rails,rails/rails,esparta/rails,kmcphillips/rails,Vasfed/rails,yawboakye/rails,Stellenticket/rails,kmcphillips/rails,Erol/rails,Stellenticket/rails,esparta/rails,yahonda/rails,rails/rails,lcreid/rails,Vasfed/rails,yawboakye/rails,MSP-Greg/rails,Stellenticket/rails,kddeisz/rails,MSP-Greg/rails,Erol/rails,Edouard-chin/rails,Edouard-chin/rails,Edouard-chin/rails,BlakeWilliams/rails,yawboakye/rails,BlakeWilliams/rails,yahonda/rails,Erol/rails,Envek/rails