docker-compose: migrate documentation out of repo (#471)

Author: bobheadxi

docker-compose/README.md

@@ -1,26 +1,5 @@
-# Sourcegraph for docker-compose
+# Sourcegraph with Docker Compose deployment reference
 
-This folder contains a Sourcegraph docker-compose deployment.
+This directory contains the Sourcegraph with Docker Compose deployment reference.
 
-## Deploying
-
-Simply clone the repository and `docker-compose up -d` to deploy Sourcegraph:
-
-```sh
-git clone https://github.com/sourcegraph/deploy-sourcegraph-docker
-cd deploy-sourcegraph-docker/docker-compose/
-git checkout v3.21.2
-docker-compose up -d
-```
-
-Sourcegraph will then run in the background and across server restarts.
-
-Notes:
-
-- The `docker-compose.yaml` file currently depends on configuration files which live in the repository, as such you must have the repository cloned onto your server.
-- Data for all services will be stored as docker volumes.
-- Use `docker ps` to inspect the Sourcegraph containers, and `docker-compose down` to teardown the deployment.
-
-## Upgrading
-
-Always refer to https://docs.sourcegraph.com/admin/updates/docker_compose prior to upgrading, as it will document any manual steps you may need to take in order to upgrade smoothly.
+To learn more about deploying, configuring, and upgrading a Sourcegraph with Docker Compose installation, please refer to our documentation: [Sourcegraph with Docker Compose](https://docs.sourcegraph.com/admin/install/docker-compose)