Merge pull request #1201 from alekcac:gittip

README → README.md

-OpenCV: open source computer vision library
+OpenCV: Open Source Computer Vision Library
 
 Homepage:    http://opencv.org
 Online docs: http://docs.opencv.org
@@ -15,3 +15,7 @@ Summary of guidelines:
 * Include tests and documentation;
 * Clean up "oops" commits before submitting;
 * Follow the coding style guide.
+
+[![Donate OpenCV project](http://opencv.org/wp-content/uploads/2013/07/gittip1.png)](https://www.gittip.com/OpenCV/) 
+[![Donate OpenCV project](http://opencv.org/wp-content/uploads/2013/07/paypal-donate-button.png)](https://www.paypal.com/cgi-bin/webscr?item_name=Donation+to+OpenCV&cmd=_donations&business=accountant%40opencv.org) 
+