Add note about bug 7 fix

Author: jfree

README.md

@@ -39,11 +39,15 @@ https://github.com/jfree/jfree-fxdemos
 History
 -------
 
+##### Version 1.0.2 (not yet released)
+
+- fixed a bug in `ChartViewer` ([#7](https://github.com/jfree/jfreechart-fx/issues/7));
+
 ##### Version 1.0.1 (30 December 2017)
 
 - fixed a bug in `ChartCanvas` ([#3](https://github.com/jfree/jfreechart-fx/issues/3));
 - added source files to Javadoc output.
 
 ##### Version 1.0.0 (5 November 2017)
 
-Initial release after extracting the JavaFX code from the JFreeChart project.
+Initial release after extracting the JavaFX code from the JFreeChart project.