Apply ICTU GitHub policy guidelines

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Follow the repository guidelines from the ICTU GitHub policy:

Mandatory guidelines

• Repositories have a repository owner. The repository owner is a human being who works for ICTU.
• Repositories have a README.md file describing the project.
• The README.md mentions the repository owner and contact information for the repository owner.
• Repositories have a LICENSE file.
• Repositories have a CODE_OF_CONDUCT.md file
• Repositories have CONTRIBUTING.md file in the root of the repository explaining how people are invited to contribute.
• Repositories have a SECURITY.md file in the root of the repository explaining the security status and point of contact for the repository. See SECURITY.md for an example.
• Repositories have Dependabot alerts turned on.
• Repositories have Code scanning alerts turned on.

Optional guidelines

• Repositories have a publiccode.yml file in the root of the repository, a metadata description standard for public software in order to make the software easily discoverable. See publiccode.yml for an example.
• Repositories have a CHANGELOG.md file describing relevant changes to the repository contents. The changelog format is based on Keep a Changelog. See CHANGELOG.md for an example.
• Repositories use Semantic Versioning to version the repository contents.