Fix(DPxAI): Fix sections order

subjects/DPxAI/colorful-arms/README.md

@@ -62,10 +62,6 @@ We provide you with the variable `randomColor`, that stores a random color in ea
 
 - Apply the random color to both arms by changing their `backgroundColor`.
 
-### Expected result
-
-You can see an example of the expected result [here](https://youtu.be/KjTBuAmUnk4)
-
 ### Code Example:
 
 ```js
@@ -89,6 +85,10 @@ const handleChangeArmColor = (event) => {
 armColorButton.addEventListener("click", handleChangeArmColor);
 ```
 
+### Expected result
+
+You can see an example of the expected result [here](https://youtu.be/KjTBuAmUnk4)
+
 **`Prompt Example:`**
 
 - "How do I change the background color of multiple elements in JavaScript?"