Polishing consistency of the Services section of the README.md and adding in Bitbucket and Github Service requirements.
Polishing consistency of the Services section of the README.md and adding in Bitbucket and Github Service requirements.

stevebritton/catapult-release-management,seth-reeser/catapult-release-management,calcium-machine/catapult-release-management,seth-reeser/catapult-release-management,seth-reeser/catapult-release-management,devopsgroup-io/catapult-release-management,MigdaliaBrito/catapult-release-management,devopsgroup-io/catapult,seth-reeser/catapult,seth-reeser/catapult,devopsgroup-io/catapult-release-management,subinguru22/catapult,devopsgroup-io/catapult,seth-reeser/catapult,devopsgroup-io/catapult-release-management,calcium-machine/catapult-release-management,calcium-machine/catapult-release-management,devopsgroup-io/catapult,subinguru22/catapult,seth-reeser/catapult,devopsgroup-io/catapult,stevebritton/catapult-release-management,subinguru22/catapult,calcium-machine/catapult-release-management,MigdaliaBrito/catapult-release-management,MigdaliaBrito/catapult-release-management,stevebritton/catapult-release-management,stevebritton/catapult-release-management