Update Readme

README.md

@@ -234,7 +234,7 @@ Please read the ["Reference" section](https://developers.google.com/youtube/v3/d
 ## Donation
 If you find this project to be of use to you please consider buying me a cup of tea :)
 
-[![paypal](https://www.paypalobjects.com/en_US/i/btn/btn_donateCC_LG.gif)](paypal.me/BernardSarfoTwumasi)
+[![paypal](https://www.paypalobjects.com/en_US/i/btn/btn_donateCC_LG.gif)](https://paypal.me/BernardSarfoTwumasi)
 ## Credits
 Built on code from Madcoda's [php-youtube-api](https://github.com/madcoda/php-youtube-api) and Mustapha Alaouy's [Youtube](https://github.com/alaouy/Youtube/).
 .