feat: add README

README.md

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+# Whatever WebGPU
+
+This is a test project that follows step-by-step the guide from [Your First WebGPU App](https://codelabs.developers.google.com/your-first-webgpu-app) for an almost identical result, with some additional features. It was created as a learning exercise to explore and understand the WebGPU API.
+
+## Features
+
+- **GPU-Accelerated Simulation**: The Game of Life simulation is computed entirely on the GPU using compute shaders.
+- **Interactive Controls**: Modify simulation parameters such as interval and grid size, and reset the grid state.
+
+## Demo
+
+Check out the live demo here: [https://whatever-web-gpu.vercel.app/](https://whatever-web-gpu.vercel.app/)
+
+## Getting Started
+
+### Prerequisites
+
+- A browser with WebGPU support (e.g., the latest version of Chrome or Edge).
+- `Node.js` and `pnpm` installed on your system.
+
+### Installation
+
+1. Clone the repository:
+   ```sh
+   git clone https://github.com/Floriansylvain/whatever-webgpu.git
+   cd whatever-webgpu
+   ```
+
+2. Install dependencies:
+   ```sh
+   pnpm install
+   ```
+
+3. Start the development server:
+   ```sh
+   pnpm run dev
+   ```
+
+4. Open your browser and navigate to `http://localhost:5173`.
+
+## Usage
+
+- Use the **Simulation Interval** slider to adjust the time between compute updates.
+- Use the **Grid Size** slider to change the size of the simulation grid.
+- Click the **Reset Grid** button to randomize the grid state.