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[docs] Fix typo in Narrowing.md #3457

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[docs] Fix typo in Narrowing.md #3457

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4 changes: 2 additions & 2 deletions packages/documentation/copy/en/handbook-v2/Narrowing.md
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Expand Up @@ -429,8 +429,8 @@ function isFish(pet: Fish | Bird): pet is Fish {
}
```

`pet is Fish` is our type predicate in this example.
A predicate takes the form `parameterName is Type`, where `parameterName` must be the name of a parameter from the current function signature.
`pet as Fish` is our type predicate in this example.
A predicate takes the form `parameterName as Type`, where `parameterName` must be the name of a parameter from the current function signature.

Any time `isFish` is called with some variable, TypeScript will _narrow_ that variable to that specific type if the original type is compatible.

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