Correct your damned documentation for self hosting.

Baboon-quality documentation for self-hosting. It requires a heck lot of digging to get a stupid `docker-compose.yml` file to run the LGTM stack like in this repository. No matter what options are copied and how are those copied to. The ingestor refuses to show any metrics or traces. The documentation site shows little to no information to debug where mistakes are being made. This makes it impossible to work with Deno or OTEL integrated tools. Absolute trash, wonder if the cloud payment covers this kind of crap 🤢 <img width="1094" height="491" alt="Image" src="https://github.com/user-attachments/assets/6404c74d-5ac2-4479-b49d-f0d415f6ef99" />