App.yml 未显示内容

[David_Ningthoujam]

你好，app.yml 没有显示任何重要内容，我应该在哪里编辑电子邮件设置或域名？
主要是我可以在哪里添加插件？这里都没有显示出来。

[omarfilip]

向下滚动，那只是第一页。

Ctrl+V

Cheatsheet for GNU nano

另请查看关于文件不可写的说明：

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?