diff --git a/Gemfile.lock b/Gemfile.lock
index f75d312..cafd0b7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,76 +1,86 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.2.2)
+    activesupport (6.0.3.2)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+      zeitwerk (~> 2.2, >= 2.2.2)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
-    concurrent-ruby (1.1.4)
-    ffi (1.9.18)
-    ffi (1.9.18-x64-mingw32)
+    concurrent-ruby (1.1.6)
+    em-websocket (0.5.1)
+      eventmachine (>= 0.12.9)
+      http_parser.rb (~> 0.6.0)
+    eventmachine (1.2.7)
+    eventmachine (1.2.7-x64-mingw32)
+    ffi (1.13.1)
+    ffi (1.13.1-x64-mingw32)
     forwardable-extended (2.6.0)
     gemoji (2.1.0)
-    html-pipeline (2.9.1)
+    html-pipeline (2.13.0)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    i18n (1.3.0)
+    http_parser.rb (0.6.0)
+    i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    jekyll (3.6.2)
+    jekyll (3.9.0)
       addressable (~> 2.4)
       colorator (~> 1.0)
+      em-websocket (~> 0.5)
+      i18n (~> 0.7)
       jekyll-sass-converter (~> 1.0)
-      jekyll-watch (~> 1.1)
-      kramdown (~> 1.14)
+      jekyll-watch (~> 2.0)
+      kramdown (>= 1.17, < 3)
       liquid (~> 4.0)
       mercenary (~> 0.3.3)
       pathutil (~> 0.9)
-      rouge (>= 1.7, < 3)
+      rouge (>= 1.7, < 4)
       safe_yaml (~> 1.0)
     jekyll-paginate (1.1.0)
-    jekyll-sass-converter (1.5.1)
+    jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
     jekyll-sitemap (1.1.1)
       jekyll (~> 3.3)
-    jekyll-watch (1.5.1)
+    jekyll-watch (2.2.1)
       listen (~> 3.0)
     jemoji (0.6.2)
       gemoji (~> 2.0)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0)
-    kramdown (1.16.2)
-    liquid (4.0.0)
-    listen (3.1.5)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-      ruby_dep (~> 1.2)
+    kramdown (2.3.0)
+      rexml
+    liquid (4.0.3)
+    listen (3.2.1)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
     mini_portile2 (2.4.0)
-    minitest (5.11.3)
-    nokogiri (1.9.1)
+    minitest (5.14.1)
+    nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
-    nokogiri (1.9.1-x64-mingw32)
+    nokogiri (1.10.10-x64-mingw32)
       mini_portile2 (~> 2.4.0)
-    pathutil (0.16.1)
+    pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.1)
-    rb-fsevent (0.10.2)
-    rb-inotify (0.9.10)
-      ffi (>= 0.5.0, < 2)
-    rouge (2.2.1)
-    ruby_dep (1.5.0)
-    safe_yaml (1.0.4)
-    sass (3.5.3)
+    public_suffix (4.0.5)
+    rb-fsevent (0.10.4)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
+    rexml (3.2.4)
+    rouge (3.21.0)
+    safe_yaml (1.0.5)
+    sass (3.7.4)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
     thread_safe (0.3.6)
-    tzinfo (1.2.5)
+    tzinfo (1.2.7)
       thread_safe (~> 0.1)
+    zeitwerk (2.4.0)
 
 PLATFORMS
   ruby