README: clarify that new components require an enhancement
A recent request to add a new bugzilla component received the response
"new components typically require architect signoff".
This is better expressed as "requires an enhancement", and "user-facing
component" is a good rule-of-thumb for "will need a new bugzilla component".
@@ -30,6 +30,7 @@ A rough heuristic for an enhancement is anything that:
- impacts upgrade/downgrade
- needs significant effort to complete
- requires consensus/code across multiple domains/repositories
+- proposes adding a new user-facing component
- has phases of maturity (Dev Preview, Tech Preview, GA)
- demands formal documentation to utilize
