To create a new incident, use the New incident issue template. If you have permissions to run the action, a draft pull request will be opened for you based on the information provided in the issue template.
Inside of this project, you'll see the following folders and files:
/
├── public/
├── src/
│ └── content/
│ └── incidents
└── package.json
This is where the current and previous incident posts are. If you need to edit one, you can find it in there.