sql lib docu improvement

process/Sql_lib/documentation.adoc

@@ -523,7 +523,7 @@ It is not possible just to replace the SqlCondition by the SqlBuilder. There are
 new SqlBuilder(...)
           .where(...)
 ----
-So the previous workaround is not needed anymore.
+Therefore, do not use SqlBuilder.begin() anymore - even if it might be still included in your version of Sql_lib, as deprecated method. Use exclusively new SqlBuilder(...) or the shortcut functions newSelect(...), newWhere(...) or newWhereIfSet(...).
 
 ==== the new .where