I agree that porn is a nsfw way to explain something in a lot of scenarios but I disagree about people needing to know at least the names of a technology from an explanation.

Most people don't need to know or care about the names to understand or use them. Knowing the names after I learnt the commands did not give me greater insight into how the tool works.

If they are just being introduced to git and github then they are likely new to programming and have much more important things to care about like learning their first programming language or understanding how their teams project actually works.

A place to host gits is a perfectly good explanation for anyone who is new to it.