Update README.md

Author: Dennis-van-Gils

README.md

@@ -1,7 +1,7 @@
 # DvG_Arduino_PyQt_multithread_demo
 [![Build Status](https://travis-ci.org/Dennis-van-Gils/DvG_Arduino_PyQt_multithread_demo.svg?branch=master)](https://travis-ci.org/Dennis-van-Gils/DvG_Arduino_PyQt_multithread_demo)
 
-Multithreaded demonstration of real-time plotting and logging of live Arduino data.
+Demonstration of multithreaded real-time plotting and logging of live Arduino data using PyQt5 and PyQtGraph.
 
 It has a PyQt5 graphical user-interface, with a PyQtGraph plot for fast real-time plotting of data, which are obtained from a waveform generating Arduino(-like) device (source files included) at an acquisition rate of 100 Hz, and it provides logging this data to a file. The main thread handles the GUI and redrawing of the plot, another thread deals with acquiring data from the Arduino at a fixed rate and the last thread maintains a thread-safe queue where messages to be sent out to the Arduino are managed.