Update Web Development With Go with the latest link

README.md

@@ -234,7 +234,7 @@ Go Web Programming teaches you how to build web applications in Go using modern
 
 Today, companies and developers need to respond to changing markets at breakneck speeds. Organizations that aren't built on highly-available, rapidly-evolving software are going the way of the dinosaurs. Cloud Native Go brings together the knowledge developers need to build massive-scale cloud applications that meet the insatiable demands of today's customers and markets.
 
-### [Web Development with Go: Learn to Create Real World Web Applications using Go](https://gumroad.com/l/web-development-with-go)
+### [Web Development with Go: Learn to Create Real World Web Applications using Go](https://www.usegolang.com/)
 
 <a href="https://static-2.gumroad.com/res/gumroad/9387844778319/asset_previews/7446424985b5f9cb53689105d297021d/retina/Cover300ppi.png" width="120px"/></a>