docs: Update expo-build-properties installation command (#702)

Author: amandeepmittal

README.md

@@ -49,16 +49,8 @@ To use this library with [`Expo`](https://expo.dev) we recommend using our confi
 
 Also you will need to install `expo-build-properties` package:
 
-#### NPM
-
-```bash
-npm i expo-build-properties
-```
-
-#### Yarn
-
-```bash
-yarn add expo-build-properties
+```shell
+npx expo install expo-build-properties
 ```
 
 #### Expo Config Plugin Props