Updated SC2291 (markdown)

SC2291.md

@@ -16,14 +16,14 @@ echo "Hello        World"
 
 ShellCheck found multiple unquoted spaces between words passed to `echo`. Due to the way arguments are interpreted and passed in the shell, these will collapse into a single space:
 
-```
+```console
 $ echo Hello        World
 Hello World
 ```
 
 If you want to output multiple spaces, such as when creating a notice or banner, make sure the spaces are quoted, e.g. by adding (or extending) double quotes to include them:
 
-```
+```console
 $ echo "Hello        World"
 Hello        World
 ```