Update release process on updating docs

Signed-off-by: Ulysses Souza <[email protected]>

script/release/README.md

@@ -192,6 +192,8 @@ be handled manually by the operator:
     - Bump the version in `compose/__init__.py` to the *next* minor version
       number with `dev` appended. For example, if you just released `1.4.0`,
       update it to `1.5.0dev`
+    - Update compose_version in [github.com/docker/docker.github.io/blob/master/_config.yml](https://github.com/docker/docker.github.io/blob/master/_config.yml) and [github.com/docker/docker.github.io/blob/master/_config_authoring.yml](https://github.com/docker/docker.github.io/blob/master/_config_authoring.yml)
+    - Update the release note in [github.com/docker/docker.github.io](https://github.com/docker/docker.github.io/blob/master/release-notes/docker-compose.md)
 
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