Update index.md

docs/tutorial/multi-container-apps/index.md

@@ -70,7 +70,16 @@ For now, we will create the network first and attach the MySQL container at star
     !!! info "Troubleshooting"
         If you see a `docker: no matching manifest` error, it's because you're trying to run the container in a different
         architecture than amd64, which is the only supported architecture for the mysql image at the moment. To solve this
-        add the flag `--platform linux/amd64` in the previous command
+        add the flag `--platform linux/amd64` in the previous command. So your new command should look like this: 
+        
+         ```bash
+    docker run -d \
+        --network todo-app --network-alias mysql --platform linux/amd64 \
+        -v todo-mysql-data:/var/lib/mysql \
+        -e MYSQL_ROOT_PASSWORD=secret \
+        -e MYSQL_DATABASE=todos \
+        mysql:5.7
+    ```
 
 1. To confirm we have the database up and running, connect to the database and verify it connects.