Add README.md with project documentation

README.md

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+# MovieMapper
+
+A desktop application for organizing and managing movie and TV show collections.
+
+## Features
+
+- Browse and scan directories for media files
+- Search TV shows using TheTVDB API
+- View show details, seasons, and episodes
+- Rename files by clicking on the file name
+- Display video durations in mm:ss format
+
+## Installation
+
+1. Clone the repository
+2. Install dependencies: `npm install`
+3. Run the application: `npm start` or `electron .`
+
+## Dependencies
+
+- Electron
+- fluent-ffmpeg (for video duration detection)
+- TheTVDB API integration
+
+## Usage
+
+1. Click "Select Directory" to choose a folder containing media files
+2. The application will scan the directory and display media files with their durations
+3. Click on any file name to rename it
+4. Use the search functionality to find TV shows and their details