My understanding is that a “page” in Write.as is simply a blog post that has been “pinned”. I have an About page (pinned post), but now I don’t know how to edit the page—if I open the Posts list I don’t see it included there, and on the page itself (when I’m logged in) I don’t see any “edit” link.
Am I missing something here? Note I am using the mobile site right now (iPhone).
Try visiting your blog via the URL https://write.as/your-username where your-username is your Write.as username. If you follow the link to the About page you should get an Edit link at the top.