Update README.md

Author: andreasrosdal

openpdf-renderer/README.md

@@ -5,10 +5,12 @@ OpenPDF-renderer is a Java library for rendering PDF files as images.
 
 ## License
 
-This project is licensed under the **GNU Lesser General Public License (LGPL)**.
+This project is licensed under the **GNU Lesser General Public License (LGPL)**. 
 
 [![License (LGPL version 2.1)](https://img.shields.io/badge/license-GNU%20LGPL%20version%202.1-blue.svg?style=flat-square)](http://opensource.org/licenses/LGPL-2.1)
 
+This is a fork from https://github.com/katjas/PDFrenderer and is used in accordance with the license: https://github.com/katjas/PDFrenderer/blob/master/LICENSE.txt
+
 Examples:
 ========
 * [Render PDF as image](https://github.com/LibrePDF/OpenPDF/blob/master/openpdf-renderer/src/test/java/openpdf/renderer/ImageRendererTest.java)
@@ -90,3 +92,4 @@ public class ImageRendererTest {
 ```
 
 
+