Pre-setup steps

Author: PavlosIsaris

README.md

@@ -17,6 +17,20 @@ All dataset images are royalty-free and were taken from [Pexels](https://www.pex
 
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+## Pre-setup steps
+
+Make sure the right NodeJS and npm versions are installed:
+
+```bash
+nvm install v14.19.2
+
+node -v
+v14.19.2
+
+npm -v
+6.14.17
+```
+
 ## Project setup
 ```
 npm install