docs(release): add release process

Author: DanStough

docs/release.md

@@ -0,0 +1,47 @@
+# Releasing `http-echo`
+
+This repository uses HashiCorp's internal CRT process for releasing. 
+IYKYK.
+
+## Prepartion
+1. You have the the `bob` CLI installed
+1. You have all of the necessary rights that you would need to perform a Consul core release.
+See those docs for more information.
+1. The commit you intend to release from `main` has passed the CRT `build` and `prepare` workflows.
+
+## Promote to staging
+
+```bash
+bob trigger-promotion \
+  --product-name=http-echo \
+  --repo=http-echo \
+  --product-version="<version from version/VERSION>" \
+  --sha="<commit you want to release>" \
+  --environment="http-echo-oss" \
+  --slack-channel="C0253EQ5B40" \
+  --org="hashicorp" \
+  --branch "main" \
+  staging
+```
+
+## Promote to production
+```bash
+bob trigger-promotion \
+  --product-name=http-echo \
+  --repo=http-echo \
+  --product-version="<version from version/VERSION>" \
+  --sha="<commit you want to release>" \
+  --environment="http-echo-oss" \
+  --slack-channel="C0253EQ5B40" \
+  --org="hashicorp" \
+  --branch "main" \
+  production
+  ```
+
+## Edit the GH Release
+
+Manually edit the [new release page in GitHub](https://github.com/hashicorp/http-echo/releases/latest) to point to the release artifacts:
+
+```
+[Binaries can be downloaded here](https://releases.hashicorp.com/http-echo/${insert your version here}/).
+```