Update image path for Floating Action Button in documentation

Author: mallowigi

docs/what-s-new.md

@@ -32,7 +32,7 @@ But that's not all! We've added some handy new features to level up your workflo
 
 Need quick access to your favorite actions? We've added a floating button right in your IDE window. You can pick which actions it triggers and where it sits—just head over to the *Menus and Toolbars* settings to set it up.
 
-{% include figure.html content="/screens/fab.png" caption="Your new best friend: the Floating Action Button" %}
+{% include figure.html content="/screens/features/fab.png" caption="Your new best friend: the Floating Action Button" %}
 
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