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/pause.md

@@ -30,7 +30,7 @@ for further details.
 
 ## Examples
 
-```bash
+```console
 $ docker pause my_container
 ```