Update README.md selfhosting link fix

Author: ShiftedMr

README.md

@@ -39,7 +39,7 @@ The easiest and quickest way to get started. A fully managed services by the cre
 
 ## 🏢 **Self-Hosted**
 
-You can also install Fider yourself. It's free, but you are responsible for managing it. [Learn how](https://fider.io/docs/hosting-instance)
+You can also install Fider yourself. It's free, but you are responsible for managing it. [Learn how](https://docs.fider.io/self-hosted/)
 
 If you do self-host and enjoy Fider, please [let us know where you're using it](https://github.com/getfider/fider/issues/899) - we really appreciate it 🙏