replaced deprecated 'gems' config with 'plugins'

JohannesMP · JohannesMP · commit 30eda89f6d76 · 2017-11-29T16:07:18.000-08:00
diff --git a/docs/_config.yml b/docs/_config.yml
@@ -6,7 +6,7 @@ collections:
     permalink: /frontend/:path/
     output: true
 
-gems:
+plugins:
   - jekyll-seo-tag
   - jekyll-sitemap
 
