Updated doc

Author: percona-csalguero

README.md

@@ -161,6 +161,9 @@ tcol28: 6.12
 
 ## Versions history
 
+#### 0.1.3
+- Fixed handling of nulls
+
 #### 0.1.2
 - New table parser able to retrieve all the information for fields, indexes and foreign keys constraints.
 - Support for foreign keys constraints
@@ -170,4 +173,4 @@ tcol28: 6.12
 - Fixed random data generation
 
 #### 0.1.0
-- Initial version
+- Initial version