But they do not appear on my GitHub homepage, nor your's, which is where I'd think you'd want them to appear. It is still weird that they are where they are.
Are you saying that by putting them there, that other members global searches will be able to find this specific repo more easily ? (If so, I'd think such keywords would normally be hidden in the repo's settings.)
Doesn't make sense to me that they are there at the head of the repo. (I could agree if they were perahps in a sidebar menu, or down in the page footer where external links usually are.)