Update README.md

Author: k2bd

README.md

@@ -7,7 +7,7 @@
 
 `flux` is a database migration tool written in Python and built with Python projects in mind.
 
-## N.B. this project is in a pre-release state. It is not ready for use in any form. There may be breaking changes to all aspects of the tool while some decisions are being made and changed.
+## N.B. this project is in a pre-release state. It is not ready for use in any form. There may be major problems breaking changes to all aspects of the tool while some decisions are being made and changed.
 
 ## Adding `flux` to your project