Add contribution guidelines

CONTRIBUTING.md

@@ -0,0 +1,40 @@
+# Contributing to Magic CLI
+
+Thank you for your interest in contributing to Magic CLI!
+
+Please follow this process for contributing code:  
+1. Open an issue to discuss the changes you want to make
+1. Wait for maintainers to approve this change
+   > This step is solely to reduce noise and avoid redundant work for implementing a change that isn't accepted. The assumption is that that a maintainer will review the issue in reasonable time.
+
+## Contributioon Workflow
+
+1. Fork the respository
+1. Implement the change you wish to make
+1. Open a pull request that references the relevant issue
+1. Make sure that the CI passes
+1. Wait for maintainers to review and approve the pull request
+
+## Development Environment
+
+### Prerequisites
+
+1. Rust toolchain and Cargo (MSVC: 1.78.0)
+
+### Workflow
+
+```shell
+git clone https://github.com/{your-username}/magic-cli
+cd magic-cli
+
+# ...Implement the changes you wish to make
+
+cargo fmt
+cargo test
+
+# ...Commit your changes
+
+# ...Push your changes
+
+# ...Open a pull request
+```

README.md

@@ -103,6 +103,6 @@ Please see [SECURITY.md](SECURITY.md) for more information, and instructions on
 
 Contributions are welcome!  
 
-There are not yet official contribution guidelines, so if you have a request or found a bug, feel free to open an issue. 
+Please see [CONTRIBUTING.md](CONTRIBUTING.md) for more information.
 
 My only request is that pull requests follow an issue, such that we avoid situations of your hard work not being accepted due to a lack of context or necessity.