Fixes in the /packages/react-devs-utils/README.md file (react#9471)

Author: webdott

packages/react-dev-utils/README.md

@@ -8,7 +8,7 @@ Please refer to its documentation:
 
 ## Usage in Create React App Projects
 
-These utilities come by default with [Create React App](https://github.com/facebook/create-react-app), which includes it by default. **You don’t need to install it separately in Create React App projects.**
+These utilities come by default with [Create React App](https://github.com/facebook/create-react-app). **You don’t need to install it separately in Create React App projects.**
 
 ## Usage Outside of Create React App
 
@@ -315,7 +315,7 @@ if (openBrowser('http://localhost:3000')) {
 
 Prints hosting instructions after the project is built.
 
-Pass your parsed `package.json` object as `appPackage`, your the URL where you plan to host the app as `publicUrl`, `output.publicPath` from your webpack configuration as `publicPath`, the `buildFolder` name, and whether to `useYarn` in instructions.
+Pass your parsed `package.json` object as `appPackage`, your URL where you plan to host the app as `publicUrl`, `output.publicPath` from your webpack configuration as `publicPath`, the `buildFolder` name, and whether to `useYarn` in instructions.
 
 ```js
 const appPackage = require(paths.appPackageJson);