Updated SC2144 (markdown)

SC2144.md

@@ -45,15 +45,13 @@ for f in /path/to/your/files*; do
 done
 ```
 
-
-
 ### Exceptions
 
 If you are sure there will only ever be exactly 0 or 1 matches -- and `nullglob` is not enabled -- then the test happens to work.
 
 You may still want to consider making this assumption explicit and failing fast if it's ever violated:
 
-```
+```bash
 files=( dir/file* )
 [ "${#files[@]}" -ge 2 ] && exit 1
 if [ -e "${files[0]}" ]