fix donate

README.md

@@ -81,14 +81,4 @@ More
 
 * Feedback: [Open a issue](https://github.com/tokland/youtube-upload/issues).
 
-<form action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_top">
-  <input type="hidden" name="cmd" value="_donations">
-  <input type="hidden" name="business" value="pyarnau@gmail.com">
-  <input type="hidden" name="lc" value="US">
-  <input type="hidden" name="item_name" value="youtube-upload">
-  <input type="hidden" name="no_note" value="0">
-  <input type="hidden" name="currency_code" value="EUR">
-  <input type="hidden" name="bn" value="PP-DonationsBF:btn_donateCC_LG.gif:NonHostedGuest">
-  <input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_donateCC_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
-  <img alt="" border="0" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1">
-</form>
+* [Donate](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=pyarnau%40gmail%2ecom&lc=US&item_name=youtube%2dupload&no_note=0&currency_code=EUR&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHostedGuest).