Added some links with explanations and examples

Added the MDN page link for spread syntax.
Added a stackoverflow link with explanation of spread and rest
Added a youtube video explaining spread and rest
Added 3 quick examples

src/pages/certifications/javascript-algorithms-and-data-structures/es6/use-the-spread-operator-to-evaluate-arrays-in-place/index.md

@@ -35,8 +35,6 @@ console.log(minNum);//-12
 ```
 
 
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