Fixing link with discount code

chapters/0501.md

@@ -8,18 +8,16 @@ Continue learning how to create amazing animations with over 4 hours of high qua
 
 You will learn how to:
 
-* Create an amazing animated hero header
-* Bring your UI to life with hover, touch and button animations
-* Wow your visitors with scroll and parallax animations
-* Build your very own animated carousel
-* Adjust animations to fit all sizes of devices and browsers
-* Optimise your CSS animations for reuse and size
-* Each with fun examples you can follow along, step by step
+- Create an amazing animated hero header
+- Bring your UI to life with hover, touch and button animations
+- Wow your visitors with scroll and parallax animations
+- Build your very own animated carousel
+- Adjust animations to fit all sizes of devices and browsers
+- Optimise your CSS animations for reuse and size
+- Each with fun examples you can follow along, step by step
 
 By the end of the course you'll have the skills you need to create an impressive animated landing page!
 
-As a *reward for finishing this book* you can save 35% today with the code `BOOK` here:
-
-http://courses.cssanimation.rocks/p/level-up/?code=book
-
+As a _reward for finishing this book_ you can save 35% today with the code `BOOK` here:
 
+https://courses.cssanimation.rocks/p/level-up/?product_id=901211&code=BOOK