Update README.md

Author: styropyr0

README.md

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-# Unity Mask Map Generator
+# Unity Mask Map Generator
+
+## Overview
+The Unity Mask Map Generator is a C# desktop application designed to streamline the process of creating mask maps for Unity HDRP projects. This tool allows developers to easily combine different texture maps into a single mask map, optimizing their materials and improving rendering performance.
+
+## Features
+- Import and combine texture maps: Roughness, Ambient Occlusion, Detail, and Smoothness.
+- User-friendly interface with clear options and an intuitive workflow.
+- "Invert" checkboxes for each texture map to provide additional control over the output.
+- Efficient generation of mask maps with a single click.
+
+## Installation
+The installer is available here.
+
+## Usage
+1. Open the Unity Mask Map Generator.
+2. Import the texture maps by clicking the corresponding "Browse" buttons for Roughness, Ambient Occlusion, Detail, and Smoothness maps.
+3. Use the "Invert" checkboxes if needed to invert any of the texture maps.
+4. Click the "Generate" button to create the mask map.
+5. The generated mask map will be saved in the specified output directory.
+
+## Screenshots
+![Screenshot](Unity Mask Map Generator/Screenshots/Screenshot0.png)
+![Screenshot](Unity Mask Map Generator/Screenshots/Screenshot.png)
+
+## Contribution
+If you'd like to contribute to the project, please fork the repository and use a feature branch. Pull requests are warmly welcome.
+
+## License
+This project is licensed under the AGPL-3.0 License - see the [LICENSE](#) file for details.
+