Add JavaFX topic

Author: andrewda

topics/javafx/index.md

@@ -0,0 +1,11 @@
+---
+created_by: Oracle
+display_name: JavaFX
+logo: javafx.png
+related: java, swing
+released: December 4, 2008
+short_description: JavaFX is a Java library used to create graphical user interfaces.
+topic: javafx
+wikipedia_url: https://en.wikipedia.org/wiki/JavaFX
+---
+JavaFX is a Java library used to build consistent graphical user interfaces across a wide range of platforms. Applications developed with JavaFX can be run on devices such as desktop computers, mobile phones, TVs, tablets, and more.