Add a prerequisites section

README.md

@@ -4,10 +4,13 @@
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/0386feedee2f409eb782a9f6082b8d74)](https://app.codacy.com/gh/filiptronicek/iclip-mobile?utm_source=github.com&utm_medium=referral&utm_content=filiptronicek/iclip-mobile&utm_campaign=Badge_Grade_Settings)
 [![runs with expo](https://img.shields.io/badge/Runs%20with%20Expo-4630EB.svg?style=flat-square&logo=EXPO&labelColor=f3f3f3&logoColor=000)](https://expo.io/)
 
+## Prerequisites
+- Yarn
+- Node.js >= v12.0
+
 ## Setup locally
-1.  Make sure you have Node.js installed 
-2.  execute `yarn`
-3.  to start the Expo server, run `yarn start`
+1.  Install dependencies with `yarn`
+2.  To start the Expo server, run `yarn start`
 
 ## Build the .apk
 1.  run `yarn run apk`