Update README.md

Author: PhilJay

README.md

@@ -16,8 +16,16 @@ Donations
 
 If you would like to support this project's further development, the creator of this project or the continuous maintenance of this project, **feel free to donate**. Your donation is highly appreciated.
 
+PayPal
+
 [![Donate](https://www.paypalobjects.com/en_US/i/btn/btn_donate_SM.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=EGBENAC5XBCKS)
 
+Gittip
+
+<a href="https://www.gittip.com/PhilJay/">
+  <img alt="Support via Gittip" src="https://rawgithub.com/twolfson/gittip-badge/0.2.0/dist/gittip.png"/>
+</a>
+
 
 Demo
 -----