From Ballotpedia

On Ballotpedia, the word "editing" typically refers more to the technical aspects of how to do things (like make a word bold or start a new page) rather than to editing as in the sentence, "She edits her magazine with great flair." Editing articles on Ballotpedia is very easy--but like many things, spending a few minutes concentrating on learning the basics makes for a much more rewarding experience. Once you've learned these basic editing skills, it becomes like driving--you do it all automatically without having to concentrate.

How to edit a page, quick guide to editing and The Cheatsheet are good places to start.

The Index of Help Contents provides an overview of all help-related articles.