I use github. Suppose there are a number of repositories that are linked by a common theme, and, in order not to clutter up the general profile view, it occurred to me to throw them into one repository. Roughly speaking, to look something like: there is a repository and there are others in it:
-main repo --1st repo --2nd repo --3rd repo --readme.md I did not find any settings, I found only a transfer to another github.