fix(curriculum): add blank like to seed code

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/use--to-import-everything-from-a-file.md

@@ -42,6 +42,7 @@ assert(
 ## --seed-contents--
 
 ```js
+
 // Only change code above this line
 
 stringFunctions.uppercaseString("hello");