Issue with the "Integrating flyctl" doc

[thomasfr]

I found an issue with this document.

Title: Integrating flyctl
Location: https://fly.io/docs/flyctl/integrating/#environment-variables
Source: https://github.com/superfly/docs/blob/main/flyctl/integrating.html.md

Describe the issue

The environment-variables section does not include all available environment variables which the flyctl/fly cli recognizes. Shouldnt all of the mentioned EnvKey be added here as well? https://github.com/superfly/flyctl/blob/9bbba451ff21bca9cbc92db8f393ac8fee559a30/internal/config/config.go#L17-L51