I was thinking the cross reference page would likely need to live in the proposals repo so any links can be added with the proposal.
If this repo was also tagged at the same time as the WildFly release that would also have the benefit of allowing us to diff between two releases to double check all additions are cross referenced.
I think this project would need a pom adding to define the build like we do for the WildFly docs.
Then for location I suppose we could either be with the WildFly docs - of if not just publish the resulting html via GitHub using the same repo.