The About page is for a general description of the project. You might want to create other pages, maybe to upload photos, or to write a report about the project, or to write other related articles.
Creating a new page is very similar to creating a new post. There are 2 ways to do it.
Dashboard / Write / Page
or
Dashboard / Manage / Pages / Create new page
You can decide if you want comments or not on your page in the Discussion / Allow Comments tickbox
