You decided to help us? Thank you! We are glad you stepped in. We realize there may be quite a few things confusing for people who are new to wiki editing, and several little technicalities you may not be aware of if you have not hanged around here for a long time, so we have some resources to assist you. We suggest you start by reading the Ice Hockey Wiki Guidelines. That's a good place to begin with, as our rules and policies are stated there. Don't worry, we don't have many, and they are very simple and instinctive.
If you are new to wiki editing, you should then read this help page about editing. You should also read the Manual of style. It is not a very long read, and it will tell you what you need to know about how to write a new article. If you want to practice using the editing interface, you should do it in the sandbox. We also have a small FAQ to assist you with some things.