Minutes for ixml community group call Tuesday 10 January 2023

https://www.w3.org/2023/01/10-ixml-minutes.html

Summary of action items
Norm to put the information about Joel's implementation on the home page
Michael to take another pass on the EBNF to BNF document
Steven to expand the tests in PR 169.
Michael to work out the metadata for identifying the Unicode version(s) 
associated with a test.
Norm to merge it and close #147
Norm and Michael to do a bit of revision to improve it for further 
discussion.
Norm to start a use cases and requirements document.
Michael to review RELAX NG rules and report back.
Michael to close issues #29 and #30.