Update comment to address comment

Author: keerthanvasist

src/sagemaker/clarify.py

@@ -576,7 +576,8 @@ def __init__(
                 "macedonian", "malayalam", "marathi", "nepali", "persian", "sanskrit", "serbian",
                 "setswana", "sinhala", "slovak", "slovenian", "swedish", "tagalog", "tamil",
                 "tatar", "telugu", "thai", "turkish", "ukrainian", "urdu", "vietnamese", "yoruba".
-                Use "multi-language" for a mix of multiple languages.
+                Use "multi-language" for a mix of multiple languages. The corresponding two-letter
+                 ISO codes are also accepted. 
 
         Raises:
             ValueError: when ``granularity`` is not in list of supported values