Updated SC2086 (markdown)

SC2086.md

@@ -85,9 +85,9 @@ This is better than an unquoted value because the alternative value can be prope
 
 Here are two common cases where this warning seems unnecessary but may still be beneficial:
 
-```
+```sh
 cmd <<< $var         # Requires quoting on Bash 3 (but not 4+)
-: ${var=default}     # Should be quoted to avoid DoS when `var='*/*/*/*/*/*`
+: ${var=default}     # Should be quoted to avoid DoS when var='*/*/*/*/*/*'
 ```
 
 ---