Update readme.

README.md

@@ -29,8 +29,8 @@ DON'T send any questions, issues or anything related to Flex to my personal emai
 - [Google Tag Manager](https://www.google.com/tagmanager/)
 - [Piwik](http://piwik.org/)
 - [StatusCake](https://www.statuscake.com/)
-- [Github Corners](https://github.com/tholman/github-corners)
-- [Representative image](https://github.com/getpelican/pelican-plugins/tree/master/representative_image)
+- [Github Corners](https://github.com/tholman/github-corners) (new in 2.2)
+- [Representative image](https://github.com/getpelican/pelican-plugins/tree/master/representative_image) (new in 2.2)
 
 ## Install
 
@@ -48,6 +48,20 @@ Always open an issue before sending a PR. Talk about the problem/feature that yo
 
 As always, if you want something that only make sense to you, just fork Flex and start a new theme.
 
+## Donate
+
+Did you liked this theme? Buy me a beer and support new features.
+
+### PayPal
+
+[![PayPal](https://img.shields.io/badge/paypal-donate-yellow.svg?maxAge=2592000)](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=KZCMH3N74KKFN&lc=BR&item_name=Alexandre%20Vicenzi&item_number=flex&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted)
+
+### Bitcoin
+
+![Screenshot](https://github.com/alexandrevicenzi/Flex/blob/master/btc.png)
+
+`1Heza38sS36iTtaFpWB5wziuiK9WChmwss`
+
 ## Translate
 
 Translate this theme to new languages at [Transifex](https://www.transifex.com/alexandrevicenzi/flex-pelican/).
@@ -65,14 +79,10 @@ I'm using Flex in my [personal blog](http://blog.alexandrevicenzi.com/).
 
 ![Screenshot](https://github.com/alexandrevicenzi/Flex/blob/master/screenshot.png)
 
-## Donate
-
-Did you liked this theme? Buy me a beer and support new features.
-
-[![Gratipay](https://img.shields.io/gratipay/user/alexandrevicenzi.svg?maxAge=2592000)](https://gratipay.com/~alexandrevicenzi/)
-
-[![PayPal](https://img.shields.io/badge/paypal-donate-yellow.svg?maxAge=2592000)](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=KZCMH3N74KKFN&lc=BR&item_name=Alexandre%20Vicenzi&item_number=flex&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted)
-
 ## License
 
 MIT
+
+## Contributors
+
+[Contributors list](https://github.com/alexandrevicenzi/Flex/graphs/contributors)