Add jekyll toc

Author: toshimaru

Gemfile

@@ -4,4 +4,5 @@ gem 'rake'
 
 group :jekyll_plugins do
   gem 'github-pages'
+  gem 'jekyll-toc'
 end

Gemfile.lock

@@ -185,6 +185,8 @@ GEM
       jekyll-seo-tag (~> 2.0)
     jekyll-titles-from-headings (0.5.1)
       jekyll (~> 3.3)
+    jekyll-toc (0.9.1)
+      nokogiri (~> 1.8)
     jekyll-watch (2.1.2)
       listen (~> 3.0)
     jemoji (0.10.2)
@@ -244,6 +246,7 @@ PLATFORMS
 
 DEPENDENCIES
   github-pages
+  jekyll-toc
   rake
 
 BUNDLED WITH

_config.yml

@@ -13,3 +13,4 @@ defaults:
       path: ""
     values:
       image: https://avatars.githubusercontent.com/u/4223
+      toc: true