Quarkus testing guide: "TestContainers example" no longer exists

[rgmz]

Describe the bug

In the "Starting services before the Quarkus application starts" section, the link to the TestContainers example returns a 404:

Common cases include starting docker containers using Testcontainers (an example of which can be found here),

Based on the commit that removed KafkaResource, TestContainers may have been superseded by Quarkus Dev Services. Either way, it would be nice for the guide to include a complete example for noobs like myself. ;)

For example: what if I want to connect my application to an instance of PostgreSQL started manually with docker-compose, but use a TestContainer (dev service?) for tests?

[quarkus-bot]

/cc @geoand