Fix broken URL

How-to-enable-stylistic-sets.md

@@ -2,7 +2,7 @@ Stylistic sets allow you to access additional, optional parts of the font on a p
 
 Fira Code v3 supports these stylistic sets:
 
-![](https://github.com/tonsky/FiraCode/raw/master/showcases/v3/stylistic_sets.png)
+![](https://raw.githubusercontent.com/tonsky/FiraCode/master/extras/stylistic_sets.png)
 
 You can enable stylistic sets **only if your editor supports it.**