Address a deprecation warning.

aki-nishimura · aki-nishimura · commit 3207fc3974f7 · 2018-11-25T09:57:04.000-08:00
diff --git a/_config.yml b/_config.yml
@@ -255,7 +255,7 @@ timezone: America/Los_Angeles # http://en.wikipedia.org/wiki/List_of_tz_database
 
 
 # Plugins
-gems:
+plugins:
   - jekyll-paginate
   - jekyll-sitemap
   - jekyll-gist
