add readmes with first pointers

frontend/README.md

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+# Frontend
+
+This is the frontend of the project. It is a Flutter application that is designed to run on both Android and iOS devices. The frontend is responsible for displaying the user interface and handling user input. It communicates with the backend to retrieve and send data.
+
+
+## Getting Started
+The flutter application is divided into multiple chunks of code.
+- the `lib` directory contains the main code of the application.
+- the `android` and `ios` directories contain platform-specific code.
+- the root directory contains configuration files and metadata.
+
+To run the application, you need to have the Flutter SDK installed. You can find instructions on how to do this [here](https://flutter.dev/docs/get-started/install).
+
+Once you have the Flutter SDK installed, you can locally install the dependencies by running:
+```bash
+flutter pub get
+```