How to set up Squid Proxy as a web page

I have Squid set up, but when my friend wants to use it, he has to enter my IP and port in his browser settings every time. How can I make it so that he only has to go a webpage I create, and use the proxy from there instead of having to change his browser Network settings every single time? I also have authentication enabled.

You can start with this: Proxy auto-config - Wikipedia, the free encyclopedia