Update README.md

Author: NochexDevTeam

README.md

@@ -12,7 +12,7 @@ Next login to your Nochex account, then go to the Payment Page Setup > section l
 
 At the bottom of your page, press Test Transaction to go through the payment process. Once complete you should receive an email for your recent test transaction from your apc page.
 
-To find out more details about APC, click <a href="https://ssl.nochex.com/downloads/Automatic%20Payment%20Confirmation%20(APC)%20Guides%20and%20Examples/APC_guide.pdf">here</a>
+To find out more details about APC, click <a href="https://support.nochex.com/kb/faq.php?id=78">here</a>
 
 ### Support
 Bug fixes and feature patches may be submitted using github pull requests, and bug reports or feature requests as github issues.