Document for installing on AWS ECS

[erlend_sh (Erlend Sogge Heggen)]

@Frez created a guide on this:

Install Discourse on Amazon Web Services (AWS)

This installation method is not officially endorsed. Use at your own risk. The Discourse team only recommend installation using the official install guide This guide originally included information about cloudflare, but @pfaffman thinks that conflating AWS and cloudflare is a bad idea. If you’re an AWS user, AWS Cloudfront makes much more sense than Cloudflare. @pfaffman edited this a good bit on 2022.11.21; if something seems broken, blame me. If it works, thank the original auth…