Update README.md

README.md

@@ -4,6 +4,15 @@ This project is a fork of the https://github.com/jinput/jinput project, which ha
 # Changes
 The project contains the full Java content necessary to build the jar file. It also distribute the native files.
 
+To build the project make sure you have Apache Ant.
+
+Run
+```
+ant clean
+ant compile jar run
+```
+`jinput.jar` ends up inside the `dist` folder.
+
 The other changes are: