Update gems. (#24499)

Gemfile

@@ -1,8 +1,8 @@
 source 'https://rubygems.org'
 
 group :development, :test do
-  gem 'jekyll', '~> 3.6.0'
+  gem 'jekyll', '~> 3.6.2'
   gem 'jekyll-redirect-from', '~> 0.12.1'
   gem 'jekyll-sitemap', '~> 1.1.1'
-  gem 'jekyll-toc', '~> 0.4.0.rc2'
+  gem 'jekyll-toc', '~> 0.4.0'
 end

Gemfile.lock

@@ -7,7 +7,7 @@ GEM
     ffi (1.9.18)
     ffi (1.9.18-x64-mingw32)
     forwardable-extended (2.6.0)
-    jekyll (3.6.0)
+    jekyll (3.6.2)
       addressable (~> 2.4)
       colorator (~> 1.0)
       jekyll-sass-converter (~> 1.0)
@@ -24,7 +24,7 @@ GEM
       sass (~> 3.4)
     jekyll-sitemap (1.1.1)
       jekyll (~> 3.3)
-    jekyll-toc (0.4.0.rc2)
+    jekyll-toc (0.4.0)
       nokogiri (~> 1.6)
     jekyll-watch (1.5.0)
       listen (~> 3.0, < 3.1)
@@ -58,10 +58,10 @@ PLATFORMS
   x64-mingw32
 
 DEPENDENCIES
-  jekyll (~> 3.6.0)
+  jekyll (~> 3.6.2)
   jekyll-redirect-from (~> 0.12.1)
   jekyll-sitemap (~> 1.1.1)
-  jekyll-toc (~> 0.4.0.rc2)
+  jekyll-toc (~> 0.4.0)
 
 BUNDLED WITH
    1.15.4