feature: Add README file

README.md

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+# Map Checking
+
+## Introduction
+
+This is a tool that helps you estimate the maximum number of people standing in a given area.
+
+## Screenshots
+
+<img width="1436" alt="screenshot" src="https://user-images.githubusercontent.com/10114716/208234291-6de08560-40a7-4750-bef9-ab16a9bebcd7.png">
+
+## Installation
+
+To install the project, you will need to have Node.js and Vue.js installed on your machine. Then, follow these steps:
+
+```bash
+git clone https://github.com/paraboul/mapchecking.git # Clone the repository
+cd mapchecing # Navigate to the project directory
+yarn # Install the dependencies
+yarn dev # Start the development server
+```
+
+## Usage
+
+To use the tool, open your browser and go to http://localhost:5173. Then, follow the prompts on the screen to input the dimensions of the area and the number of people. The tool will then calculate and display the maximum capacity.
+
+## Contributing
+
+We welcome contributions to the project! If you have an idea for a new feature or have found a bug, please open an issue or submit a pull request.