I found this title very confusing. I thought it was the equivalent of their non-profit being absorbed by GitHub. Meaning, the corporate structure." Why don't they just say that Apache will officially host their repositories on GitHub moving forward?
"apache moves to github" makes it sound like apache made a rote and boring switch, which this sort of is. They just as easily could have moved to sourceforge or gitlab. joining a team has implications that github (c) works together with open source. while it certainly hosts a lot of it, github isnt open source.
Headlining this as your "open source community" also helps avoid the uncomfortable issue of an open source product moving to a completely proprietary system for CI and development.