Merge pull request #2413 from oasisprotocol/lukaw3d-patch-1

Fix command for fetching Docker image digests

Author: lukaw3d

docs/rofl/workflow/containerize-app.mdx

@@ -133,7 +133,7 @@ To prevent another container image being pulled inside ROFL, pin the **image
 digest** inside `compose.yaml`. Fetch the `sha256:...` digest by invoking:
 
 ```shell
-docker images --digest
+docker images --digests
 ```
 
 Then append `@` and the digest next to the image tag in your `compose.yaml`, for
@@ -144,4 +144,4 @@ example:
 ```
 
 [docker]: https://www.docker.com/
-[podman]: https://www.podman.io/
+[podman]: https://www.podman.io/