feat: Add CONTRIBUTING.md to guide new contributors

Author: GeekMasher

CONTRIBUTING.md

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+# Contributing
+
+Hi there! We're thrilled that you'd like to contribute to this project. Your help is essential for keeping it great.
+
+Contributions to this project are [released](https://help.github.com/articles/github-terms-of-service/#6-contributions-under-repository-license) to the public under the [project's open source license][license].
+
+Please note that this project is released with a [Contributor Code of Conduct][code-of-conduct]. By participating in this project you agree to abide by its terms.
+
+## Reporting Bugs
+
+The best way to report a bug is to open an issue on GitHub. Please include as much information as possible, including:
+
+- A clear description of the problem
+- Steps to reproduce the problem
+- The expected behavior
+- The actual behavior
+
+This will help us understand the issue and fix it more quickly.
+
+## Suggesting Enhancements
+
+If you have an idea for a new feature or enhancement, [please open an issue on GitHub][issues].
+
+## Submitting Changes
+
+1. [Fork][fork] and clone the repository
+2. Create a new branch for your changes
+3. Make your changes
+4. Write tests for your changes (if applicable)
+5. Run the tests to make sure everything is working
+
+### Requirements
+
+- [Rust](https://www.rust-lang.org/tools/install)
+- [Cargo](https://doc.rust-lang.org/cargo/getting-started/installation.html)
+- [CodeQL](https://codeql.github.com/docs/codeql-cli/getting-started/)
+  - `gh-codeql` is a great tool to help you with CodeQL CLI.
+
+### Cloning the Repository
+
+To clone the repository, run the following command:
+
+```bash
+git clone https://github.com/GitHubSecurityLab/codeql-extractor-bicep
+git submodule update --init --recursive
+```
+
+> ![NOTE]
+> This repository uses submodules to manage the Tree-Sitter grammar from the language.
+
+### Building Extractor Pack
+
+There is a script to build the extractor pack. You can run it from the root of the repository:
+
+```bash
+./scripts/create-extractor-pack.sh
+```
+
+### Testing CodeQL Libraries and Queries
+
+To test the CodeQL libraries and queries, you can run the following command:
+
+```bash
+./scripts/run-tests.sh
+```
+
+## Resources
+
+- [How to Contribute to Open Source](https://opensource.guide/how-to-contribute/)
+- [Using Pull Requests](https://help.github.com/articles/about-pull-requests/)
+- [GitHub Help](https://help.github.com)
+
+[issues]: https://github.com/GitHubSecurityLab/codeql-extractor-bicep/issues
+[fork]: https://github.com/GitHubSecurityLab/codeql-extractor-bicep/fork
+[pr]: https://github.com/GitHubSecurityLab/codeql-extractor-bicep/compare
+[license]: https://github.com/GitHubSecurityLab/codeql-extractor-bicep/tree/main/LICENSE
+[code-of-conduct]: https://github.com/GitHubSecurityLab/codeql-extractor-bicep/tree/main?tab=coc-ov-file