How to put colored text into githubs README.md or Index.md file

Question

I want to put colored text onto my readme/index.md file but I can't find any way online to do it so it works properly, is it possible, and if so how?

Note: I know there is another similar post but it's a very old post and I tried some of those methods they put, but all of them resulted in either it not working properly or working but with extra things showing such as the + sign etc

Answer 1

GitHub enabled recently README for user profiles; which lead to a lot of examples

None of those examples includes colored text!
So as I mentioned in 2014, this is still not yet for supported by GFM directly.