correct spelling for 'paypal'

Author: vsopvsop

README.md

@@ -9,7 +9,7 @@
 [![Dev Dependency Status](https://img.shields.io/david/dev/docpad/docpad-plugin-eco.svg)](https://david-dm.org/docpad/docpad-plugin-eco#info=devDependencies)<br/>
 [![Gratipay donate button](https://img.shields.io/gratipay/docpad.svg)](https://www.gratipay.com/docpad/ "Donate weekly to this project using Gratipay")
 [![Flattr donate button](https://img.shields.io/badge/flattr-donate-yellow.svg)](http://flattr.com/thing/344188/balupton-on-Flattr "Donate monthly to this project using Flattr")
-[![PayPayl donate button](https://img.shields.io/badge/paypal-donate-yellow.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=QB8GQPZAH84N6 "Donate once-off to this project using Paypal")
+[![PayPal donate button](https://img.shields.io/badge/paypal-donate-yellow.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=QB8GQPZAH84N6 "Donate once-off to this project using Paypal")
 [![BitCoin donate button](https://img.shields.io/badge/bitcoin-donate-yellow.svg)](https://coinbase.com/checkouts/9ef59f5479eec1d97d63382c9ebcb93a "Donate once-off to this project using BitCoin")
 [![Wishlist browse button](https://img.shields.io/badge/wishlist-donate-yellow.svg)](http://amzn.com/w/2F8TXKSNAFG4V "Buy an item on our wishlist for us")
 
@@ -60,7 +60,7 @@ No sponsors yet! Will you be the first?
 
 [![Gratipay donate button](https://img.shields.io/gratipay/docpad.svg)](https://www.gratipay.com/docpad/ "Donate weekly to this project using Gratipay")
 [![Flattr donate button](https://img.shields.io/badge/flattr-donate-yellow.svg)](http://flattr.com/thing/344188/balupton-on-Flattr "Donate monthly to this project using Flattr")
-[![PayPayl donate button](https://img.shields.io/badge/paypal-donate-yellow.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=QB8GQPZAH84N6 "Donate once-off to this project using Paypal")
+[![PayPal donate button](https://img.shields.io/badge/paypal-donate-yellow.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=QB8GQPZAH84N6 "Donate once-off to this project using Paypal")
 [![BitCoin donate button](https://img.shields.io/badge/bitcoin-donate-yellow.svg)](https://coinbase.com/checkouts/9ef59f5479eec1d97d63382c9ebcb93a "Donate once-off to this project using BitCoin")
 [![Wishlist browse button](https://img.shields.io/badge/wishlist-donate-yellow.svg)](http://amzn.com/w/2F8TXKSNAFG4V "Buy an item on our wishlist for us")