Typos, round 3

[Firsh]

https://www.totaltypescript.com/workshops/typescript-pro-essentials/unions-and-narrowing/combining-union-types-in-typescript/exercise

"There are several different functions here–"

Instead of the long dash, I'd use a :

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https://www.totaltypescript.com/workshops/typescript-pro-essentials/unions-and-narrowing/narrowing-with-in-statements/exercise

The tests written below the video are confusing/buggy and don't match what's in the video or what's in the repo.

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https://www.totaltypescript.com/workshops/typescript-pro-essentials/unions-and-narrowing/narrowing-with-in-statements/solution

"We can use an in operator to check if a specific key exists on json."
The example code uses response instead of json as the name.

"Using in here allows gives us a great way..."
remove the word allows

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https://www.totaltypescript.com/workshops/typescript-pro-essentials/unions-and-narrowing/introducing-the-never-type-in-typescript

Below this text:
"You cannot assign anything to never, except for never itself."

The code snippet would make more sense if it included this from the repo version:

const fn = (input: never) => {};

Because otherwise, the fn function definition is not shown in the text.

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https://www.totaltypescript.com/workshops/typescript-pro-essentials/unions-and-narrowing/discriminated-booleans/solution

Possibly broken backtick code markdown around response is successful, the first member of the tuple is
(the words true and User should be surrounded by them, not the explaining text)