Update README.md

[jfversluis]

Updated the readme to be a bit more beginner friendly and readable

[aritchie]

@jfversluis I was going to PR, but saw you had this open. You probably want to add an iOS/MacCatalyst section for

Info.plist

<key>NSCameraUsageDescription</key>
<string>Barcode Scanning</string>

and android:

Android.manifest

<uses-permission android:name="android.permission.CAMERA" />

No one cares about windows 😏

@Redth your docs are lacking 😃

[jfversluis]

Technically I added

Enable the camera permissions to all platforms that you want to target. See the Docs

and was hoping to get away with it 🙄 I'll add the actual instructions to this as well!