A Quick Recap lesson: Add additional resource

[nikjavor]

Add additional resource link to article about moving from jQuery to vanilla JS

Because

The article in the link is interesting read about comparing jQuery and JS functions.

This PR

• Replaced text in Aditional resources from "It looks like this lesson doesn’t have any additional resources yet..." to "Check out this article by Tobias Ahlin..."

Issue

No issue, just added additional link

Additional Information

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[MaoShizhong]

Thanks for the PR. I'm going to close this without merging as we don't need the extra scope of that article in that lesson. We only need to make a note about jQuery due to the questions we used to get asked a lot in the community. If someone wishes to explore jQuery and vanilla JS equivalents, they are welcome to do so in their own time but it's not something we intend on including in our curriculum, even as an additional resource.