docs: use "console" code-hint for shell examples

This replaces the use of bash where suitable, to allow easier copy/pasting
of shell examples without copying the prompt or process output.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

docs/reference/commandline/stop.md

@@ -25,6 +25,6 @@ instruction in the container's Dockerfile, or the `--stop-signal` option to
 
 ## Examples
 
-```bash
+```console
 $ docker stop my_container
 ```