Easiest way: Add/change a file via Githubs interface, send a PR.

Each file in _post is one meetup event. See the example in _drafts to see which fields will be handled (drafts will not be rendered).

Get the correct Jekyll version with gem install github-pages (requires Ruby 2).

Then, start a server with jekyll server -w --baseUrl="". It rebuilds your site when you change files.

You can enable drafts of posts by adding --drafts.