Updated README.md

README.md

-OpenCV: Open Source Computer Vision Library
+### OpenCV: Open Source Computer Vision Library
 
-Homepage:    http://opencv.org
-Online docs: http://docs.opencv.org
-Q&A forum:   http://answers.opencv.org
-Dev zone:    http://code.opencv.org
+#### Resources
 
-Please read before starting work on a pull request:
-  http://code.opencv.org/projects/opencv/wiki/How_to_contribute
+* Homepage: <http://opencv.org>
+* Docs: <http://docs.opencv.org>
+* Q&A forum: <http://answers.opencv.org>
+* Issue tracking: <http://code.opencv.org>
+
+#### Contributing
+
+Please read before starting work on a pull request: <http://code.opencv.org/projects/opencv/wiki/How_to_contribute>
 
 Summary of guidelines:
 
@@ -16,6 +19,5 @@ Summary of guidelines:
 * 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) 
-
+[![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)
\ No newline at end of file