Yes, you're right that I should talk about the overview in the Content Warnings section, and make clear that the overview should alert readers to sensitive topics the work deals with. Because, up to this point, it was more about orienting readers to where the chapter you're presenting fits into the larger project.

I added an option for people to reach out to the group admin (currently me) to make trigger warning requests anonymously. It's a pretty small group, so I'm not sure how that will work in practice. But I can at least make the option available.

I listed a bunch of other common triggers -- both trauma-based (e.g. pregnancy loss) and compulsive-behavior-based (e.g disordered eating). So that people can have a starting point for what I mean by "sensitive topics"

I introduced the topic by talking about accessibility for people with a history of trauma, so I hope that helps frame the stakes for people who are dubious of trigger warnings.

I'm sending it out to a new group of people who are interested in the group, so I'll just have to see how it goes, and revise as necessary.