Async and Await: fix minor grammar

[thereisnodeveloper]

Small grammatical fix (see **)

Asynchronous code can become difficult to follow when it has a lot of things going on. async and await are two keywords that can help make asynchronous code read more like synchronous code.

Because

Grammatical error. Makes it clear we are referring to the code.

This PR

• Add "code" after asynchronous

Issue

N/A

Additional Information

NA

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