Update README.md

Author: EkaterinaVu

README.md

@@ -194,3 +194,7 @@ Modern browsers and IE11.
 ## License
 
 [MIT](https://github.com/ditdot-dev/vue-flow-form/blob/master/LICENSE) license.
+
+## Changelog
+
+Changes for each release are documented in the [release notes](https://github.com/ditdot-dev/vue-flow-form/releases).