update donate BTC address [ci skip]

README.md

@@ -132,7 +132,10 @@ Please report any bugs or submit feature requests to [XChart's Github issue trac
 [Build History](https://travis-ci.org/timmolter/XChart/builds)  
 
 ## Donations
-1PrZHiJorAw7RQrjP9CJgtPuqr6fU65PKt
+
+Donate with Bitcoin: [1JVyTP9v9z54dALuhDTZDQfS6FUjcKjPgZ](https://blockchain.info/address/1JVyTP9v9z54dALuhDTZDQfS6FUjcKjPgZ)
+
+All donations will be used to pay bounties for new features, refactoring, etc. Please consider donating or even posting your own bounties on our [Issues Page](https://github.com/timmolter/xchart/issues?state=open). Open bounties and bounties paid thus far can be found on knowm's [bounties](http://knowm.org/open-source/) page.
 
 ## Release Information