For the most part, all you really need to know about editing Wikipedia you learned in kindergarten. Treat everyone with respect. Give others benefit of the doubt. Don't cause a scene, even if you feel justified. And though it should go without saying, don't threaten to sue. (Yes, it's happened.)
But since Wikipedia is about developing an encyclopedia, there are numerous processes and procedures to learn that would never become an issue on a social media platform. For this reason, Wikipedia maintains an informal list of key behavioral guidelines which describe the most commonly observed rules.
Still, I'd be doing you a disservice if I didn't mention that Wikipedia can also be a very contentious place, and some editors get away with being far less civil than they should be. You, however, should always follow the Golden Rule.