Update README.md

Author: StephanPreibisch

README.md

@@ -19,7 +19,7 @@ wiki](http://imagej.net/Multiview-Reconstruction).
 For questions, bug reports, remarks and comments just use github here or send
 me an email: preibischs@janelia.hhmi.org
 
-If you want to **build the code** you can use Maven calling `mvn clean package` on the command line after checking the project out. Important: you will need to install Java with JavaFX, for example available here in the [Azul JDK](https://www.azul.com/downloads/?version=java-8-lts&package=jdk-fx#zulu).
+If you want to **build the code** you can use Maven calling `mvn clean package` on the command line after checking the project out. Important: you will need to install Java with JavaFX (Java8 should work), for example available here in the [Azul JDK](https://www.azul.com/downloads/?version=java-8-lts&package=jdk-fx#zulu).
 
 ## Citation