Add required gems to _config.yaml
Add required gems to _config.yaml

- Add jekyll-paginate gem. Fixes "Deprecation: You appear to have pagination turned on, but you haven't included the `jekyll-paginate` gem.' error when running jekyll serve.

- Add jekyll-gist gem. Fixes "Liquid Exception: Liquid syntax error: Unknown tag 'gist'" errors when running jekyll serve.

Brideau/whackdata