Basic editing tutorial
First you need to create an account, then you can start editing. To avoid changes of bad intention, any change of content will be reviewed by the moderators first. Once the moderators approve the change of content, people will see the changed content. I recommend people to use VisualEditor to edit the page because it's easy to use for people who don't have the web page designing skill. Just click the "edit" link then you enter the mode of VisualEditor. Below are some basic editing tutorials.