move internal editors/contribution documentation to mkdocs system

[cmungall]

proposal:

move docs from the wiki to a docs/ folder in the main repo, and then publish via mkdocs

Many other ontologies do this: CL, Mondo, RO

Advantages:

• we can make PRs and review proposed changes to docs
• better user experience

For broader context on my proposal to harmonized contributor/editor docs across OBO: https://docs.google.com/presentation/d/1YyWYSetDML3nhNgMUmcrsw80Xx1Uf1n1dWI-A20PMa8/edit

[pbuttigieg]

Fine with that - also prevents loss if wikis go down

[kaiiam]

Maybe call this a medium term priority?

[cmungall]

Thanks. I don't think it's a high priority but now I have your approval I may attempt this if an opportunity presents itself

[kaiiam]

If there's an easy way to do it without breaking all the links in the github wiki docs go for it. Otherwise it could also be an opportunity to consolidate/revise docs but that'd be a longer process. Migrating what we already have would be a great start if automatable.