Add doc note about success_with_info

Christopher Jones · Christopher Jones · commit 8f79f3b368c5 · 2016-12-13T12:33:29.000+11:00
diff --git a/doc/api.md b/doc/api.md
@@ -3786,6 +3786,9 @@ connection.execute(
 PL/SQL stored procedures, functions and anonymous blocks can be called
 from node-oracledb using [`execute()`](#execute).
 
+Note the error property of the callback is not set when PL/SQL
+"success with info" warnings such as compilation warnings occur.
+
 ### <a name="plsqlproc"></a> 10.1 PL/SQL Stored Procedures
 
 The PL/SQL procedure:
