Update README.md

Author: marciovmf

README.md

@@ -1,4 +1,4 @@
 # Marcio Freitas personal blog repository.
 
 This is my personal [blog](http://handmadegame.dev/) repository. The pages under /doc folder were generated
-using a custom static site generator called [(un)amazing](https://github.com/marciovmf/unamazing).
+using a custom static site generator called [slab](https://github.com/marciovmf/stdx/tree/main/demo/slab).