YAML CPP: Add missing backticks to Doxygen comment
@@ -186,7 +186,7 @@ KeySet removeArrayMetaData (KeySet const & keys)
* , the keys
*
* - `user/parent/level1`, and
- * - user/parent/level1/level2/level3
+ * - `user/parent/level1/level2/level3`
*
* are missing.
*
