docs(fix): fix typo registry doc (#5653)

Author: bene2k1

pages/container-registry/how-to/push-images.mdx

@@ -22,9 +22,9 @@ After [configuring Docker on your local machine](/container-registry/how-to/conn
 
 1. Open a terminal window on your local computer.
 2. Pull the latest release of the [Ubuntu](https://hub.docker.com/_/ubuntu/) Docker image:
-    ```
-    docker pull ubuntu:latest
     ```bash
+    docker pull ubuntu:latest
+    ```
 3. Tag the image:
     ```bash
     docker tag ubuntu:latest rg.fr-par.scw.cloud/mynamespace/ubuntu:latest