Poke about in this repo until happy, commit result
Make another commit with version number in refresh.s65 incremented, and a new entry in refresh.md indicating that this is the version number now under development
Update acorn_mos_refreshed repo's submodule reference to the commit made in step 1
Push
The previous version's section from refresh.md should go in the GitHub release comment
To go in the readme or something...
The previous version's section from refresh.md should go in the GitHub release comment