updating docs for new customer replica repo (#13)

Author: coury-clark

.github/PULL_REQUEST_TEMPLATE.md

@@ -8,6 +8,7 @@
   this repository. If uneeded, add link or explanation of why it is not needed here.
 -->
 * [ ] Sister [deploy-sourcegraph](https://github.com/sourcegraph/deploy-sourcegraph) change:
+* [ ] Sister [deploy-sourcegraph-docker](https://github.com/sourcegraph/deploy-sourcegraph-docker) change:
 * [ ] All images have a valid tag and SHA256 sum
 ### Test plan
 

README.md

@@ -1,8 +1,11 @@
-# Sourcegraph with Docker Compose
+# Sourcegraph with Docker (Customer Replica 1)
+
+This is a replica of the pure-docker deployment mode for Sourcegraph. This deployment mode is considered deprecated and should not
+be used for new Sourcegraph installations.
 
 [![sourcegraph: search](https://img.shields.io/badge/sourcegraph-search-brightgreen.svg)](https://sourcegraph.com/github.com/sourcegraph/deploy-sourcegraph-docker) [![Build status](https://badge.buildkite.com/e60f9ffcafd68882d3db6fe5e33567e3a111d391a554d50d82.svg)](https://buildkite.com/sourcegraph/deploy-sourcegraph-docker)
 
-This repository is the deployment reference for [deploying Sourcegraph with Docker Compose](https://docs.sourcegraph.com/admin/install/docker-compose).
+This repository is the deployment reference for [deploying Sourcegraph with Docker (Customer Replica 1)](https://docs.sourcegraph.com/admin/install/docker-compose).
 
 > 🚨 IMPORTANT: When upgrading Sourcegraph, please check [upgrading docs](https://docs.sourcegraph.com/admin/updates/docker_compose) to check if any manual migrations are necessary.
 >
@@ -17,20 +20,6 @@ container](https://docs.sourcegraph.com/#quickstart-guide) or using [Docker
 Compose](https://docs.sourcegraph.com/admin/install/docker-compose). Migrating to Sourcegraph on
 Kubernetes is easy later.
 
-## Is Docker Compose the right deployment type for me?
-
-Please see [our docs](https://docs.sourcegraph.com/admin/install) for comparisons of deployment types and our resource estimator.
-
-## Contributing
-
-We've made our deployment configurations open source to better serve our customers' needs. If there is anything we can do to make deploying Sourcegraph easier just [open an issue (in sourcegraph/sourcegraph)](https://github.com/sourcegraph/sourcegraph/issues/new?assignees=&labels=deploy-sourcegraph-docker&title=%5Bdeploy-sourcegraph-docker%5D) or a pull request and we will respond promptly!
-
-## Questions & Issues
-
-[Open an issue (in sourcegraph/sourcegraph)](https://github.com/sourcegraph/sourcegraph/issues/new?assignees=&labels=deploy-sourcegraph&template=deploy-sourcegraph.md&title=%5Bdeploy-sourcegraph%5D) or contact us ([email protected]), we are happy to help!
-
-## Pure-Docker Sourcegraph cluster deployment reference
+## Is the Docker (Customer Replica 1) deployment type for me?
 
-What if your organization wants a multi-machine deployment without using Kubernetes?
-What if you use a different container management platform, for example?
-Anyone using a container management platform other than Kubernetes (Netflix's [Titus](https://netflix.github.io/titus/), Apache's [Mesos](http://mesos.apache.org/documentation/latest/docker-containerizer/), etc.) can use our [Pure-Docker Sourcegraph cluster deployment reference](./pure-docker/README.md) to deploy Sourcegraph.
+No. Please see our [docs](https://docs.sourcegraph.com/admin/deploy) for a variety of installation methods that will suit your needs, or [learn more about Sourcegraph Cloud](https://about.sourcegraph.com/).