[docs] Fix incorrect `docker inspect` example
Fixed incorrect `docker inspect` example in docs.
Verify by running the old and new commands.
fixes
@@ -84,7 +84,7 @@ $ docker inspect --format='{{.LogPath}}' $INSTANCE_ID
### Get an instance's image name
```bash
-$ docker inspect --format='{{.Container.Spec.Image}}' $INSTANCE_ID
+$ docker inspect --format='{{.Config.Image}}' $INSTANCE_ID
```
### List all port bindings
