Documentation like this is critical for our open software environment to work. I'm organizing a special interest group[4] to address documentation needs. If you have any questions or comments, please dont hesitate to reach out and share!
Is there any particular reason to do it on wikitech? Most of the other SIGs [1] and most of our documentation is on mediawiki.org (which is in general a better maintained place). The ORES docs live there too, apart from a few pages that are concerned with operations issues.