[course] update readme

Author: gvergnaud

README.md

@@ -2,6 +2,10 @@
 
 by @flegall and @gvergnaud
 
+### [Workshop Slides](https://bit.ly/3jUf7ub)
+
+### [Take the workshop on Codesandbox](https://codesandbox.io/s/github/gvergnaud/type-level-typescript-workshop?file=/README.md)
+
 **Welcome to the Type Level TypeScript Workshop!**
 
 In this course and workshop we hope to take your TypeScript skills from intermediate to **advanced**, and even make a real **TypeScript Wizard** of you! We will start by demonstrating that the type system of TypeScript is much more than simple type annotations: it's actually a full fledged **programming language** in itself! Once you know how to program with types, everything becomes possible. You will no longer feel like your ability to write the abstractions you need is restrained by the type system.
@@ -20,10 +24,6 @@ Finally, we will also see that moving more of the complexity of your code to the
 
 [Let's get started!](tree/main/00-introduction)
 
-### [Workshop Slides](https://bit.ly/3jUf7ub)
-
-### [Take the workshop on Codesandbox](https://codesandbox.io/s/github/gvergnaud/type-level-typescript-workshop?file=/README.md)
-
 ## Note on naming conventions
 
 While it's very common to use upper-case single letters for generics because it works well for simple types: `Array<T>`, it doesn't read very well when types become more complex.