How to access .toml file

Apologies, this is a really dump question but how do you access the .toml file on a redis image?

I am following these instructions Redis on Fly

It says to tweak the fly.toml but doesn’t show how. I am able to SSH in but I am not sure if that is what I need to do or where to look.

When you run that it should create a fly.toml on your current working dir

$ fly launch --image flyio/redis:6.2.6 --no-deploy
Creating app in /Users/lubien/workspace/fly-tests
Using image flyio/redis:6.2.6
? App Name (leave blank to use an auto-generated name):
? Select organization: Lubien (personal)
? Select region: gru (São Paulo)
Created app holy-hill-259 in organization personal
Wrote config file fly.toml
Your app is ready. Deploy with `flyctl deploy`

$ fly-tests % ls