docs: update link

Updated the link to the foundry documentation

Author: PraneshASP

src/content/developers/docs/frameworks/index.md

@@ -90,7 +90,7 @@ Before diving into frameworks, we recommend you first read through our introduct
 
 **Foundry -** **_A blazing fast, portable and modular toolkit for Ethereum application development written in Rust._**
 
-- [Documentation](https://onbjerg.github.io/foundry-book/)
+- [Documentation](https://book.getfoundry.sh/)
 - [GitHub](https://github.com/gakonst/foundry/)
 - [Tools for Foundry](https://github.com/crisgarner/awesome-foundry)