docs: adding contribution guide

CONTRIBUTING.md

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+# Contributing
+
+This document provides guidelines for contributing to the module.
+
+## Dependencies
+
+Validate your changes inside the blueprint-agent described in [.Dockerfile](.docker/Dockerfile). It can be run `make dBuildAndRun`.
+
+## Linting and Formatting
+
+Many of the files in the repository can be linted or formatted to
+maintain a standard of quality.
+
+When working with the repository for the first time run pre-commit
+
+Run `pre-commit install`
+Run `pre-commit run --all-files`
+
+## Release Drafter
+
+This repository uses [Release Drafter](https://github.com/release-drafter/release-drafter) thus it is mandatory to label Pull Ruquest and recommended to use [Semantic Commit Messages](https://gist.github.com/joshbuchea/6f47e86d2510bce28f8e7f42ae84c716).