Update donation/referral links

Author: thebigmunch

README.md

@@ -36,7 +36,7 @@ You can contact the author in ``#gmusicapi`` on ``irc.freenode.net`` or by [e-ma
 
 Donations, as any compliment, are appreciated but not expected.
 
-[![Bitcoin](http://img.shields.io/badge/bitcoin-donate-green.svg?style=flat-square)](https://coinbase.com/thebigmunch) [![Flattr](http://img.shields.io/badge/flattr-donate-green.svg?style=flat-square)](https://flattr.com/thing/2419308) [![PayPal](http://img.shields.io/badge/paypal-donate-green.svg?style=flat-square)](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=DHDVLSYW8V8N4&lc=US&item_name=thebigmunch&currency_code=USD)  
+[![Bitcoin](http://img.shields.io/badge/bitcoin-donate-green.svg?style=flat-square)](https://coinbase.com/thebigmunch) [![PayPal](http://img.shields.io/badge/paypal-donate-green.svg?style=flat-square)](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=DHDVLSYW8V8N4&lc=US&item_name=thebigmunch&currency_code=USD)  
 [![Coinbase](http://img.shields.io/badge/coinbase-referral-orange.svg?style=flat-square)](https://coinbase.com/?r=52502f01e0fdd4d3ef000253&utm_campaign=user-referral&src=referral-link) [![Digital Ocean](http://img.shields.io/badge/digital ocean-referral-orange.svg?style=flat-square)](https://www.digitalocean.com/?refcode=3823208a0597) [![Namecheap](http://img.shields.io/badge/namecheap-referral-orange.svg?style=flat-square)](http://www.namecheap.com/?aff=67208)
 
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