readme updated

README.md

@@ -8,7 +8,7 @@
 [![Join the chat at https://gitter.im/PlotJuggler/Lobby](https://badges.gitter.im/PlotJuggler/Lobby.svg)](https://gitter.im/PlotJuggler/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Tweet](https://img.shields.io/twitter/url/http/shields.io.svg?style=social)](https://twitter.com/intent/tweet?text=I%20use%20PlotJuggler%20and%20it%20is%20amazing%0D%0A&url=https://github.com/facontidavide/PlotJuggler&via=facontidavide&hashtags=dataviz,plotjuggler,GoROS,PX4)
 
-# PlotJuggler 2.2.0
+# PlotJuggler 2.3.0
 
 QT5 based application to display time series in plots, using an intuitive "drag and drop" interface.
 
@@ -118,7 +118,6 @@ PlotJuggler required a lot of work to be developed; my goal is to build the most
 intuitive and powerfull tool to visualize data and timeseries.
 
 If you find PlotJuggler useful, consider making a donation on any of these platforms: 
-[BuyMeACoffe](https://www.buymeacoffee.com/plotjuggler), 
 [PayPal](https://www.paypal.me/facontidavide) or 
 [LiveraPay](https://en.liberapay.com/facontidavide/).