diff --git a/Gemfile.lock b/Gemfile.lock
index e2e609e..bcff152 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,13 +1,22 @@
 GEM
   remote: https://rubygems.org/
   specs:
+    Ascii85 (2.0.1)
     activesupport (4.2.11.1)
       i18n (~> 0.7)
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.7)
+      public_suffix (>= 2.0.2, < 7.0)
+    afm (1.0.0)
+    async (2.34.0)
+      console (~> 1.29)
+      fiber-annotation
+      io-event (~> 1.11)
+      metrics (~> 0.12)
+      traces (~> 0.18)
+    bigdecimal (3.3.1)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
@@ -16,18 +25,26 @@ GEM
     commonmarker (0.17.13)
       ruby-enum (~> 0.5)
     concurrent-ruby (1.1.5)
+    console (1.34.2)
+      fiber-annotation
+      fiber-local (~> 1.1)
+      json
     dnsruby (1.61.3)
       addressable (~> 2.5)
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
-    ethon (0.12.0)
-      ffi (>= 1.3.0)
+    ethon (0.15.0)
+      ffi (>= 1.15.0)
     eventmachine (1.2.7)
     execjs (2.7.0)
     faraday (0.17.0)
       multipart-post (>= 1.2, < 3)
-    ffi (1.11.2)
+    ffi (1.17.2)
+    fiber-annotation (0.2.0)
+    fiber-local (1.1.0)
+      fiber-storage
+    fiber-storage (1.0.1)
     forwardable-extended (2.6.0)
     gemoji (3.0.1)
     github-pages (202)
@@ -81,20 +98,23 @@ GEM
       octokit (~> 4.0)
       public_suffix (~> 3.0)
       typhoeus (~> 1.3)
+    hashery (2.1.2)
     html-pipeline (2.12.2)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    html-proofer (3.14.1)
+    html-proofer (5.1.0)
       addressable (~> 2.3)
-      mercenary (~> 0.3)
-      nokogiri (~> 1.10)
-      parallel (~> 1.3)
+      async (~> 2.1)
+      nokogiri (~> 1.13)
+      pdf-reader (~> 2.11)
       rainbow (~> 3.0)
       typhoeus (~> 1.3)
       yell (~> 2.0)
+      zeitwerk (~> 2.5)
     http_parser.rb (0.6.0)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
+    io-event (1.14.0)
     jekyll (3.8.5)
       addressable (~> 2.4)
       colorator (~> 1.0)
@@ -200,6 +220,7 @@ GEM
       gemoji (~> 3.0)
       html-pipeline (~> 2.2)
       jekyll (~> 3.0)
+    json (2.15.2)
     kramdown (1.17.0)
     liquid (4.0.0)
     listen (3.1.5)
@@ -207,28 +228,37 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
     mercenary (0.3.6)
-    mini_portile2 (2.4.0)
+    metrics (0.15.0)
+    mini_portile2 (2.8.9)
     minima (2.5.0)
       jekyll (~> 3.5)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
     minitest (5.13.0)
     multipart-post (2.1.1)
-    nokogiri (1.10.8)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.18.10)
+      mini_portile2 (~> 2.8.2)
+      racc (~> 1.4)
     octokit (4.14.0)
       sawyer (~> 0.8.0, >= 0.5.3)
-    parallel (1.19.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
+    pdf-reader (2.15.0)
+      Ascii85 (>= 1.0, < 3.0, != 2.0.0)
+      afm (>= 0.2.1, < 2)
+      hashery (~> 2.0)
+      ruby-rc4
+      ttfunk
     public_suffix (3.1.1)
-    rainbow (3.0.0)
+    racc (1.8.1)
+    rainbow (3.1.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
     rouge (3.11.0)
     ruby-enum (0.7.2)
       i18n
+    ruby-rc4 (0.1.5)
     ruby_dep (1.5.0)
     rubyzip (2.0.0)
     safe_yaml (1.0.5)
@@ -243,12 +273,16 @@ GEM
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thread_safe (0.3.6)
-    typhoeus (1.3.1)
-      ethon (>= 0.9.0)
+    traces (0.18.2)
+    ttfunk (1.8.0)
+      bigdecimal (~> 3.1)
+    typhoeus (1.5.0)
+      ethon (>= 0.9.0, < 0.16.0)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
     unicode-display_width (1.6.0)
-    yell (2.2.0)
+    yell (2.2.2)
+    zeitwerk (2.7.3)
 
 PLATFORMS
   ruby