I found a video and tried to make my own plugin, I hope it works for you people. If it doesn't please tell me why. Its chat based use the command /hi
It should work.
Its supposed to be a chat based plugin which simply allows one player to say hi to another with a command. I hope this works and don't think it requires any permissions. Its my first plugin so please don't say its too bad and please give me some advice and tell me what I have done wrong if I have.