build(gh-pages): create workflow for automatic MD file conversion on push

[h7ml]

This commit introduces a new GitHub Actions workflow that automatically converts Markdown files to HTML whenever changes are pushed to the repository. The workflow is triggered by changes to any .md file and utilizes the markdown-to-html-cli package to perform the conversion. The converted files are then deployed to the gh-pages branch using the JamesIves/github-pages-deploy-action.

[h7ml]

Each time the readme.md file is updated, it will be built into HTML through an action. Example: GitHub Actions Run

Then, it will be deployed to the gh-pages branch. Example: GitHub Pages