newsletter: update broken link

Author: avivace

website/newsletter.md

@@ -7,4 +7,4 @@ editLink: false
 
 - [gbdev newsletter Issue #1 - 2021](/newsletter/1)
 - [State of GBDev - March 2021](https://eldred.fr/blog/gbdev-status)
-- [gbdev updates - November 2020](https://avivace.com/blog/gbdev-updates-nov20.html)
+- [gbdev updates - November 2020](https://avivace.com/posts/gbdev-updates-nov2020/)