Update README.md

Author: hacksterous

README.md

@@ -1,2 +1,8 @@
 # waves
-Waves is a simple timing diagram editor.
+Waves is a simple timing diagram editor written in Tcl/Tk that saves waveform information as a text file.
+A Windows binary (made with starkit) is availble, and the source can be run using
+wish if Tcl/Tk is installed on most OSs.
+
+![Waves Example](docs/waves-1.jpg)
+
+See [here](https://github.com/hacksterous/waves/blob/master/docs/Waves%20Timing%20Diagram%20Editor.pdf) for a detailed document.