To edit this page, simply navigate to the folder you installed Grav into, and then browse to the user/pages/01.home folder and open the default.md file in your editor of choice.  You will see the content of this page in Markdown format.
Creating a new page is a simple affair in Grav. Simply follow these simple steps:
user/pages/ and create a new folder.  In this example, we will use explicit default ordering and call the folder 02.mypage.Launch your text editor and paste in the following sample code:
---
title: My New Page
---
# My New Page!
This is the body of **my new page** and I can easily use _Markdown_ syntax here.user/pages/02.mypage/ folder as default.md. This will tell Grav to render the page using the default template.NOTE: The page will automatically show up in the Menu after the "Home" menu item. If you wish to change the name that shows up in the Menu, simple add: menu: My Page between the dashes in the page content. This is called the YAML front matter, and it is where you configure page-specific options.