PyPI Publishing Workflow and Docs Improvements

[mdapena]

Initial Checks

• The code compiles successfully without any errors or warnings.
• I have personally tested these changes on my local environment.
• I have ensured that relevant documentation has been added or updated.
• I adhere to the project structure and code standards defined in the documentation.
• My code follows the established coding style guidelines.
• I have added tests for the new code (if applicable).
• All existing tests have passed successfully.

Description

This pull request introduces several enhancements and improvements to the latest release of the project. It includes the implementation of new GitHub Actions, bug fixes, and documentation enhancements. The following bullet points highlight the key changes made in this pull request:

• GitHub Actions: The "publish to PyPI" workflow has been introduced, automating the uploading of package builds whenever new releases are created. This streamlines the process and ensures seamless distribution of the project.
• Academic Citations: A CITATION.cff file has been added in this pull request to facilitate academic citations.
• Code of Conduct: A code of conduct has been included in the project, aligning with the guidelines outlined in the Contributor Covenant v2.1.
• Project Badges: Badges have been added to the main page of the documentation as well as the readme file.
• git-authors mkdocs material: The mkdocs.yml file has been updated to incorporate the "git-authors" plugin, which displays the names of documentation contributors on their respective pages.
• Documentation Improvements: In this pull request, issues related to relative links in the documentation have been addressed.