Update README.md

Author: AndrewSink

Diff for: README.md

@@ -1 +1,17 @@
-# Greyscale_Processing_Program_GUI
+# Greyscale_Processing_Program_GUI
+
+Convert a color image to a greyscale image (now with a fancy GUI!)
+
+![Greyscale Program GUI](https://user-images.githubusercontent.com/46334898/89680367-d067b780-d8c0-11ea-91b4-915762bd3ac1.png)
+
+
+This program was designed as a quick test of the Processing programming language (http://processing.org), and will require Processing to run.
+
+You'll need to import the ControlP5 library and install it in your Processing libraries directory: http://www.sojamo.de/libraries/controlP5/.
+
+This is an updated version of my first Greyscale Processing program: https://github.com/AndrewSink/Greyscale_Conversion_Program
+
+The intent of this program is to get more familiar with the Processing PDE and eventually create a more robust image processor for use with drawing plotters.
+
+**KNOWN BUGS: 
+1. Files longer the GUI will load partially off-screen, but 'SAVE' will still capture the full image.**