App.yml not showing content

[David_Ningthoujam]

hello, app.yml not showing anything important, where do i edit stuff like email setting? domain?
mainly where i can add plugin? none of them showing here

[omarfilip]

Scroll down, that’s only the first page.

Ctrl+V

Cheatsheet for GNU nano

Also see this about the file being unwritable:

File 'containers/app.yml' is unwritable

I am following this guide to install discourse on AWS EC2 instance. Completed all the steps except Elasticache (not using separate Redis). After finishing the discourse setup, I need to edit my app.yml for change in RDS and SMTP settings. But it’s showing that File ‘containers/app.yml’ is unwritable. Has anyone faced this issue? How to resolve this?