This is probably one of the best intro guides I've seen. A lot of them get bogged down into details that aren't important, and I've been guilty of that myself with some friends.
This is short, sweet, and has extra reading only if people want it.
I'd also crosspost this to a few other communities if you can :) The two fediverse communities ( !fediverse@lemmy.world!fediverse@lemmy.ml ), maybe the mastodon one, and various intro ones as well
Yea it's super clear, I'll be sending it to friends :)
For crossposting, if you're using desktop then there should be a little button (looks like the copy button) which helps you cross post.
I prefer to just open each community and copy paste in the contents. The above method is only if you really care about having a little "crossposted to..." text on the post. Depending on the app or frontend, people might not even see that.