Roll back gems: to plugins: change in _config.yml

- GitHub Pages still doesn't seem to load safe plugins when using `plugins` key

Author: mmistakes

_config.yml

@@ -30,7 +30,7 @@ logo: # path of site logo, e.g. "/assets/images/logo.png"
 # Build settings
 markdown: kramdown
 theme: jekyll-theme-basically-basic
-plugins:
+gems:
   - jekyll-feed
   - jekyll-seo-tag
   - jekyll-sitemap

docs/_config.yml

@@ -51,7 +51,7 @@ permalink: /:categories/:title/
 timezone: America/New_York # http://en.wikipedia.org/wiki/List_of_tz_database_time_zones
 
 # Plugins
-plugins:
+gems:
   - jekyll-feed
   - jekyll-seo-tag
   - jekyll-sitemap