link rest api reference to validate types

Signed-off-by: varun-edachali-dbx <varun.edachali@databricks.com>

Author: varun-edachali-dbx

src/databricks/sql/backend/sea/conversion.py

@@ -17,6 +17,9 @@
 class SqlType:
     """
     SQL type constants
+
+    The list of types can be found in the SEA REST API Reference:
+    https://docs.databricks.com/api/workspace/statementexecution/executestatement
     """
 
     # Numeric types