lifecycle - review criteria - cleaning up table headings

docs/extend-stages.md

@@ -151,9 +151,15 @@ and assess several criteria. As a rule of thumb, *Contributed* extensions are
 subject to a gentler review (fewer criteria), and *Official* extensions are
 subject to more stringent review (more criteria).
 
-|   	|       | Contributed	| Official |
+### Who can review?
+
+* Contributed extensions must be reviewed by at least one peer/contributor.
+* Official extensions must be reviewed by at least one senior member of core team
+
+### Criteria for passing a review
+
+| Category	| Criterion | Required for<br>*contributed*<br>extensions? | Required for<br>*official*<br>extensions? |
 |------ | ----- | ----------------------------- | --------------------- |
-| | | Review by at least one peer/contributor	| Review by at least one senior member of core team |
 | Admin	| License code under AGPLv3+, GPLv2+, LGPLv2+, MIT/X11, or BSD-2c	| Required	| Required |
 | Admin	| Publish code on github.com 	| Required	| Required |
 | Admin	| Put the extension name under the "org.civicrm.*" namespace	| Not assessed	| Suggested (Not Required) |