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readme.md

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+# HP11C Calculator
+![Build Shield](https://img.shields.io/badge/Build-Succeeding-sucess)
+![Downloads Shield](https://img.shields.io/github/downloads/HadrianFinch/HP11C/total?label=Downloads)
+
+HP11C is a calculator app for windows that uses Reverse Polish Notation for calculations.
+
+## Installation
+
+Download the [latest GitHub release](https://github.com/HadrianFinch/HP11C/releases) and run the installer, or download the standalone .exe from [here](https://github.com/HadrianFinch/HP11C/raw/master/bin/HP11C.exe)
+
+## Usage
+Launch the app from the Start menu or type `hpcalc` in a command prompt or Run window. Or, if you have the standalone, run the.exe by double-clicking it.
+
+## Contributing
+Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
+
+## License
+[MIT](https://choosealicense.com/licenses/mit/)