For info, I want to compare it to the license for this project: CSS ICON.
Thank you - BUT to clarify: My question was really only about where I could see the explicit mention of "BSD-3clause". Of course, it is the license content that is legally crucial but in my (limited) experience, the name of the license is useful to state explicitly for e.g license comparisons and overall to give a feeling that "OK, they're using the established standard, no tricky fine print."
So, I'm hoping for "BSD-3clause" to appear in both github and on tiddlywiki.com. I'm including a tid file here as a PR.