Add basic CONTRIBUTING.md file

CONTRIBUTING.md

@@ -0,0 +1,67 @@
+# Contributing to programets
+
+Thank you for your interest in contributing to **programets**! This document provides guidelines and information about how you can contribute.
+
+## Code of Conduct
+
+By participating in this project, you agree to abide by our [Code of Conduct](CODE_OF_CONDUCT.md). Please read it before contributing.
+
+## How to Contribute
+
+### Reporting Issues
+
+Found a bug or have a feature request? Please open an issue at [GitHub Issues](https://github.com/nih-cfde/programets/issues).
+
+When reporting a bug, please include:
+
+- A clear description of the problem
+- Steps to reproduce the issue
+- Expected behavior vs actual behavior
+- Your R version and operating system
+- Output from `sessionInfo()`
+
+### Proposing Changes
+
+We welcome pull requests! Here's how to get started:
+
+1. **Fork the repository** and clone it locally
+2. **Create a branch** for your changes: `git checkout -b feature/your-feature-name`
+3. **Make your changes** following the code style guidelines below
+4. **Test your changes** by running `devtools::check()`
+5. **Commit your changes** with a clear commit message
+6. **Push your branch** and open a pull request
+
+### Development Setup
+
+For detailed development setup instructions, including Google Analytics authentication and encryption configuration, see [DEVELOPER.md](DEVELOPER.md).
+
+Basic setup:
+
+```r
+# Install development dependencies
+devtools::install_deps(dependencies = TRUE)
+
+# Run tests
+devtools::test()
+
+# Run R CMD check
+devtools::check()
+```
+
+## Code Style
+
+This project uses [lintr](https://lintr.r-lib.org/) for code style enforcement:
+
+- Use 2-space indentation
+- Follow the [tidyverse style guide](https://style.tidyverse.org/)
+- Document functions using roxygen2 comments
+
+Run the linter before submitting:
+
+```r
+lintr::lint_package()
+```
+
+## Questions?
+
+If you have questions, feel free to open an issue or reach out to the maintainers listed in the [README](README.md).