fix: typo (#4279)

Author: jersonzc

beta/src/pages/learn/start-a-new-react-project.md

@@ -71,7 +71,7 @@ If you're looking to start a bigger, production-ready project, [Next.js](https:/
 
 You may prefer to create and configure your own toolchain. A JavaScript build toolchain typically consists of:
 
-* A **package manager**—lets you install, updated and manage third-party packages. [Yarn](https://yarnpkg.com/) and [npm](https://www.npmjs.com/) are two popular package managers.
+* A **package manager**—lets you install, update and manage third-party packages. [Yarn](https://yarnpkg.com/) and [npm](https://www.npmjs.com/) are two popular package managers.
 * A **bundler**—lets you write modular code and bundle it together into small packages to optimize load time. [Webpack](https://webpack.js.org/), [Snowpack](https://www.snowpack.dev/), [Parcel](https://parceljs.org/) are several popular bundlers.
 * A **compiler**—lets you write modern JavaScript code that still works in older browsers. [Babel](https://babeljs.io/) is one such example.