add demo gif

README.md

@@ -1,11 +1,13 @@
 <p align="center">
-  <img src="./demo/icon.png" width="450" />
+  <img src="./demo/icon.png" width="150" />
 </p>
 
 # Paperless Share
 
 An Android app that bridges your document scanner with your [paperless-ng](https://github.com/jonaswinkler/paperless-ng) server.
 
+<img src="./demo/demo.gif" width="300" />
+
 ## Why?
 
 I like using extremely refined scanning apps such as [Office Lens](https://play.google.com/store/apps/details?id=com.microsoft.office.officelens&hl=en_US&gl=US) for documents. **Paperless Share** adds Paperless to the Android share sheet for easy consumption.
@@ -23,6 +25,7 @@ I might publish on FDroid and Google Play Store, not sure yet.
 Install [Flutter](https://flutter.dev/docs/get-started/install) and [integrate with your IDE of choice](https://flutter.dev/docs/get-started/editor?tab=vscode). A release can then be built and installed using:
 
 ```bash
+flutter pub get
 flutter build appbundle
 flutter build apk --split-per-abi
 cd build/app/outputs/flutter-apk/