Add CLA ref to CONTRIBUTING.md
Description
Add reference to signing a CLA to the CONTRIBUTING.md file
Environment
None
Fixed
Assignee
Steve Ebersole
Reporter
Steve Ebersole
Fix versions
Labels
None
backPortable
None
Suitable for new contributors
None
Requires Release Note
None
Pull Request
None
backportDecision
None
Components
Affects versions
Priority
Configure