variable names

Author: zth

pages/docs/manual/latest/array-and-list.mdx

@@ -62,8 +62,8 @@ You can spread arrays of the the same type into new arrays, just like in JavaScr
 ```res example
 let y = [1, 2]
 let x = [4, 5, ...y]
-let x = [4, 5, ...y, 7, ...y]
-let x = [...y]
+let x2 = [4, 5, ...y, 7, ...y]
+let x3 = [...y]
 ```
 
 ```javascript