I've taken the text produced by hg help evolution when the evolve
extension is enabled and made that available by the same command with
just hg core. Changes I've made:
- Added "(EXPERIMENTAL)" to the title. (That doesn't hide the topic from hg help, though.)
- Replaced old-style experimental.evolution=<names> config by new-style experimental.evolution.<name>=true.
- Replaces a "obsolete markers" by "obsolescence markers".
- Removed most content from "Current feature status".
When the evolve extension is enabled, its help text takes precedence.