wip: revise README for clarity and accuracy

updated the README to enhance clarity and correctness.

Author: codayon

README.md

@@ -1,48 +1,63 @@
 # OpenBangla Keyboard (OBK)
 
-OpenBangla Keyboard is an open-source, Unicode-compliant Bangla input method for GNU/Linux, macOS, and Windows. As a comprehensive typing solution, it features advanced automation tools and supports popular layouts including Avro Phonetic, Probhat, Munir Optima, and National (Jatiya).
+OpenBangla Keyboard is an open-source, Unicode-compliant Bangla input method built with Rust and C++ for GNU/Linux, macOS, and Windows. As an incredibly fast, high-performance, cross-platform solution, it features advanced automation tools and supports popular layouts such as Avro Phonetic, Probhat, Munir Optima, and National (Jatiya).
 
-Most features of [Avro Keyboard](https://github.com/mugli/Avro-Keyboard) are present in OpenBangla Keyboard. So Avro Keyboard users will feel right at home in Linux with OpenBangla Keyboard.
+Most features of [Avro Keyboard](https://github.com/mugli/Avro-Keyboard) are included here. This makes OBK familiar and intuitive for longtime Avro Keyboard users.
 
 ## Installation
 
-For GNU/Linux and macOS
+> [!IMPORTANT]
+> If you have OpenBangla Keyboard 2.0.0 or an earlier version installed, please [uninstall](https://openbangla.github.io/manual#uninstall) it first.
+
+### Quick Start
+
+Choose the command below based on your operating system to install the latest version automatically.
+
+**GNU/Linux and macOS**
 
 ```sh
 curl -fsSL https://openbangla.github.io/install | bash
 ```
 
-For Windows
+**Windows (PowerShell)**
 
 ```powershell
-irm openbangla.github.io/install.ps1 | iex
+irm "https://openbangla.github.io/install.ps1" | iex
 ```
 
+### Manual Installation
+
+For advanced users who prefer to build from source or manually configure environment variables, please refer to our [Manual](https://openbangla.github.io/manual#installation). Alternatively, you can download installers for your operating system (e.g., `.exe` `.deb`), from our [releases](https://github.com/OpenBangla/OpenBangla-Keyboard/releases).
+
 ## Community
 
-We are on [Github Discussions](https://github.com/OpenBangla/OpenBangla-Keyboard/discussions) and [Facebook](https://www.facebook.com/openbanglakeyboard).
+We are on [GitHub Discussions](https://github.com/OpenBangla/OpenBangla-Keyboard/discussions) and [Facebook](https://www.facebook.com/openbanglakeyboard).
 
 ## Contributing
 
-We welcome contributions! To get started:
+We welcome contributions! Please refer to [CONTRIBUTING.md](CONTRIBUTING.md) for full details on our contribution process.
+
+To get started quickly:
 
 1. Fork the repository.
 2. Create a new branch (`git checkout -b feature-branch`).
 3. Commit your changes (`git commit -m 'Add new feature'`).
 4. Push to the branch (`git push origin feature-branch`).
 5. Open a Pull Request.
 
+If you find a bug or have a feature request, please [open an issue](https://github.com/OpenBangla/OpenBangla-Keyboard/issues).
+
 ## Acknowledgements
 
 - [Mehdi Hasan Khan](https://github.com/mugli), for originally developing and maintaining Avro Keyboard.
 - [Rifat Nabi](https://github.com/torifat), for porting Avro Phonetic to Javascript.
 - [Sarim Khan](https://github.com/sarim), for writing ibus-avro.
 - [Saiful Islam](https://github.com/saaiful), for the icon.
 - [Material Design Icons](https://material.io/resources/icons).
-- [QSimpleUpdater](https://github.com/alex-spataru/QSimpleUpdater), for providing update mechanism.
+- [QSimpleUpdater](https://github.com/alex-spataru/QSimpleUpdater), for providing the update mechanism.
 
 ## License
 
-This project is licensed under [GPL 3 Licence](https://opensource.org/licenses/GPL-3.0).
+This project is licensed under [GPL 3 License](https://opensource.org/licenses/GPL-3.0).
 
 Made with ❤️ by [Muhammad Mominul Huque](https://github.com/mominul) and [✨ contributors ✨](https://github.com/OpenBangla/OpenBangla-Keyboard/graphs/contributors)!