docs: add runtime documentation (#3)

Author: jaredLunde

.tool-versions

@@ -1 +1 @@
-golang 1.21
+golang 1.21.5

CONTRIBUTING.md

@@ -0,0 +1,60 @@
+# Contribute
+
+> A guide for contributing to `new-dockerfile`
+
+## Getting Started
+
+1. [Install asdf](https://asdf-vm.com/guide/getting-started.html) - A CLI tool that can manage multiple
+   language runtime versions on a per-project basis
+
+3. Clone the repo and open in VSCode
+
+```sh
+git clone https://github.com/flexstack/new-dockerfile
+code new-dockerfile
+```
+
+4. Install the project's dependencies
+
+```sh
+asdf install
+go mod download
+```
+
+## Development
+
+Run the CLI in development mode:
+
+```sh
+go run ./cmd/new-dockerfile --help
+```
+
+Vet code
+```sh
+go vet ./...
+```
+
+Run tests
+```sh
+go test -v ./...
+```
+
+## Open an issue
+
+If you find a bug or want to request a new feature, please open an issue.
+
+## Submit a pull request
+
+Before submitting a feature pull request, it is important to open an issue to discuss what you plan to work on to ensure success in releasing your changes.
+For small bug fixes or improvements, go ahead and submit a pull request without an issue.
+
+1. Fork the repo
+2. Create a new branch (`git checkout -b feature/my-feature`)
+3. Make your changes
+4. Commit your changes (`git commit -am 'Add my feature'`)
+5. Push to the branch (`git push origin feature/my-feature`)
+6. Create a new Pull Request
+
+## License
+
+MIT