Consider saying more about how office hours work / give examples in order to make people feel less intimidated about joining

[asb]

This came from a discussion on Discourse https://discourse.llvm.org/t/office-hours-round-table-notes/82839/3?u=asb

It sounds like there's one problem of people not being aware of office hours, but I also wonder if people are intimidated about joining. If this is indeed a problem, I’d wondered about some kind “what you can expect from office hours” that reflects that different hosts might handle them in different ways but gives a little more colour beyond what is on the website already. Maybe even a "how I used office hours (and other LLVM resources) to get involved in LLVM" might be an interesting blog to arrange we could link to.