Improve grammar (#2331)

Remove extraneous "as"

Author: rootulp

content/docs/hooks-reference.md

@@ -165,7 +165,7 @@ Now the subscription will only be recreated when `props.source` changes.
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 >If you want to run an effect and clean it up only once (on mount and unmount), you can pass an empty array (`[]`) as a second argument. This tells React that your effect doesn't depend on *any* values from props or state, so it never needs to re-run. This isn't handled as a special case -- it follows directly from how the dependencies array always works.
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->If you pass an empty array (`[]`), the props and state as inside the effect will always have their initial values. While passing `[]` as the second argument is closer to the familiar `componentDidMount` and `componentWillUnmount` mental model, there are usually [better](/docs/hooks-faq.html#is-it-safe-to-omit-functions-from-the-list-of-dependencies) [solutions](/docs/hooks-faq.html#what-can-i-do-if-my-effect-dependencies-change-too-often) to avoid re-running effects too often. Also, don't forget that React defers running `useEffect` until after the browser has painted, so doing extra work is less of a problem.
+>If you pass an empty array (`[]`), the props and state inside the effect will always have their initial values. While passing `[]` as the second argument is closer to the familiar `componentDidMount` and `componentWillUnmount` mental model, there are usually [better](/docs/hooks-faq.html#is-it-safe-to-omit-functions-from-the-list-of-dependencies) [solutions](/docs/hooks-faq.html#what-can-i-do-if-my-effect-dependencies-change-too-often) to avoid re-running effects too often. Also, don't forget that React defers running `useEffect` until after the browser has painted, so doing extra work is less of a problem.
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 >We recommend using the [`exhaustive-deps`](https://github.com/facebook/react/issues/14920) rule as part of our [`eslint-plugin-react-hooks`](https://www.npmjs.com/package/eslint-plugin-react-hooks#installation) package. It warns when dependencies are specified incorrectly and suggests a fix.