docs: add README

Author: Danny Molnar

README.md

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+# Gitorchk
+
+Gitorchk is a command-line tool written in Go to help you stay up-to-date with changes in your Git repository. It checks if your local main branch is behind the remote main branch and prompts you to take action if updates are available.
+
+## Installation
+
+To install Gitorchk, you can use `go get`:
+
+```bash
+go get github.com/danny-molnar/gitorchk
+```
+
+Ensure your Go environment is set up properly and your `$GOPATH/bin` directory is in your system's PATH.
+
+## Usage
+
+Run Gitorchk in your Git repository directory:
+
+```bash
+gitorchk
+```
+
+If your local main branch is behind the remote main branch, Gitorchk will prompt you to take action to update your repository.
+
+## Features
+
+- Check if local main branch is behind remote main branch.
+- Prompt user to take action if updates are available.
+
+## Contributing
+
+Contributions are welcome! If you find a bug or have an idea for a new feature, please open an issue or submit a pull request.
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE.md](LICENSE.md) file for details.