update Fury link in Scala build tool overview

Author: LOsioChico

_overviews/scala-book/scala-build-tool-sbt.md

@@ -161,5 +161,5 @@ Here’s a list of other build tools you can use to build Scala projects:
 - [Ant](http://ant.apache.org/)
 - [Gradle](https://gradle.org/)
 - [Maven](https://maven.apache.org/)
-- [Fury](https://propensive.com/opensource/fury)
+- [Fury](https://github.com/propensive/fury)
 - [Mill](https://com-lihaoyi.github.io/mill/)