diff --git a/Gemfile.lock b/Gemfile.lock
index aebaded02..d5aaf59f1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,6 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
+    RedCloth (4.2.9)
     actionpack (6.0.3.7)
       actionview (= 6.0.3.7)
       activesupport (= 6.0.3.7)
@@ -24,9 +25,10 @@ GEM
       public_suffix (>= 2.0.2, < 5.0)
     autoprefixer-rails (10.2.5.1)
       execjs (> 0)
-    bibtex-ruby (4.4.7)
+    bibtex-ruby (6.0.0)
       latex-decode (~> 0.0)
-    bootstrap (5.0.1)
+    blankslate (2.1.2.4)
+    bootstrap (5.0.2)
       autoprefixer-rails (>= 9.1.0)
       popper_js (>= 2.9.2, < 3)
       sassc-rails (>= 2.0.0)
@@ -36,28 +38,21 @@ GEM
     citeproc-ruby (1.1.13)
       citeproc (~> 1.0, >= 1.0.9)
       csl (~> 1.5)
+    classifier-reborn (2.3.0)
+      fast-stemmer (~> 1.0)
+      matrix (~> 0.4)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
     coffee-script-source (1.11.1)
-    colorator (1.1.0)
-    commonmarker (0.17.13)
-      ruby-enum (~> 0.5)
+    colorator (0.1)
     concurrent-ruby (1.1.8)
     crass (1.0.6)
     csl (1.5.2)
       namae (~> 1.0)
     csl-styles (1.0.1.11)
       csl (~> 1.0)
-    dnsruby (1.61.5)
-      simpleidn (~> 0.1)
-    em-websocket (0.5.2)
-      eventmachine (>= 0.12.9)
-      http_parser.rb (~> 0.6.0)
     erubi (1.10.0)
-    ethon (0.14.0)
-      ffi (>= 1.15.0)
-    eventmachine (1.2.7)
     execjs (2.8.1)
     faraday (1.4.2)
       faraday-em_http (~> 1.0)
@@ -72,194 +67,81 @@ GEM
     faraday-excon (1.1.0)
     faraday-net_http (1.0.1)
     faraday-net_http_persistent (1.1.0)
+    fast-stemmer (1.0.2)
     ffi (1.15.1)
-    forwardable-extended (2.6.0)
-    gemoji (3.0.1)
-    github-pages (215)
-      github-pages-health-check (= 1.17.2)
-      jekyll (= 3.9.0)
-      jekyll-avatar (= 0.7.0)
-      jekyll-coffeescript (= 1.1.1)
-      jekyll-commonmark-ghpages (= 0.1.6)
-      jekyll-default-layout (= 0.1.4)
-      jekyll-feed (= 0.15.1)
-      jekyll-gist (= 1.5.0)
-      jekyll-github-metadata (= 2.13.0)
-      jekyll-mentions (= 1.6.0)
-      jekyll-optional-front-matter (= 0.3.2)
-      jekyll-paginate (= 1.1.0)
-      jekyll-readme-index (= 0.3.0)
-      jekyll-redirect-from (= 0.16.0)
-      jekyll-relative-links (= 0.6.1)
-      jekyll-remote-theme (= 0.4.3)
-      jekyll-sass-converter (= 1.5.2)
-      jekyll-seo-tag (= 2.7.1)
-      jekyll-sitemap (= 1.4.0)
-      jekyll-swiss (= 1.0.0)
-      jekyll-theme-architect (= 0.1.1)
-      jekyll-theme-cayman (= 0.1.1)
-      jekyll-theme-dinky (= 0.1.1)
-      jekyll-theme-hacker (= 0.1.2)
-      jekyll-theme-leap-day (= 0.1.1)
-      jekyll-theme-merlot (= 0.1.1)
-      jekyll-theme-midnight (= 0.1.1)
-      jekyll-theme-minimal (= 0.1.1)
-      jekyll-theme-modernist (= 0.1.1)
-      jekyll-theme-primer (= 0.5.4)
-      jekyll-theme-slate (= 0.1.1)
-      jekyll-theme-tactile (= 0.1.1)
-      jekyll-theme-time-machine (= 0.1.1)
-      jekyll-titles-from-headings (= 0.5.3)
-      jemoji (= 0.12.0)
-      kramdown (= 2.3.1)
-      kramdown-parser-gfm (= 1.1.0)
-      liquid (= 4.0.3)
-      mercenary (~> 0.3)
-      minima (= 2.5.1)
-      nokogiri (>= 1.10.4, < 2.0)
-      rouge (= 3.26.0)
-      terminal-table (~> 1.4)
-    github-pages-health-check (1.17.2)
-      addressable (~> 2.3)
-      dnsruby (~> 1.60)
-      octokit (~> 4.0)
-      public_suffix (>= 2.0.2, < 5.0)
-      typhoeus (~> 1.3)
-    html-pipeline (2.14.0)
+    gemoji (2.1.0)
+    github-pages (28)
+      RedCloth (= 4.2.9)
+      jekyll (= 2.4.0)
+      jekyll-coffeescript (= 1.0.0)
+      jekyll-mentions (= 0.1.3)
+      jekyll-redirect-from (= 0.6.2)
+      jekyll-sass-converter (= 1.2.0)
+      jekyll-sitemap (= 0.6.0)
+      jemoji (= 0.3.0)
+      kramdown (= 1.3.1)
+      liquid (= 2.6.1)
+      maruku (= 0.7.0)
+      pygments.rb (= 0.6.0)
+      rdiscount (= 2.1.7)
+      redcarpet (= 3.1.2)
+    html-pipeline (1.9.0)
       activesupport (>= 2)
-      nokogiri (>= 1.4)
-    http_parser.rb (0.6.0)
-    i18n (0.9.5)
+      nokogiri (~> 1.4)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
-    jekyll (3.9.0)
-      addressable (~> 2.4)
-      colorator (~> 1.0)
-      em-websocket (~> 0.5)
-      i18n (~> 0.7)
+    jekyll (2.4.0)
+      classifier-reborn (~> 2.0)
+      colorator (~> 0.1)
+      jekyll-coffeescript (~> 1.0)
+      jekyll-gist (~> 1.0)
+      jekyll-paginate (~> 1.0)
       jekyll-sass-converter (~> 1.0)
-      jekyll-watch (~> 2.0)
-      kramdown (>= 1.17, < 3)
-      liquid (~> 4.0)
+      jekyll-watch (~> 1.1)
+      kramdown (~> 1.3)
+      liquid (~> 2.6.1)
       mercenary (~> 0.3.3)
-      pathutil (~> 0.9)
-      rouge (>= 1.7, < 4)
+      pygments.rb (~> 0.6.0)
+      redcarpet (~> 3.1)
       safe_yaml (~> 1.0)
-    jekyll-avatar (0.7.0)
-      jekyll (>= 3.0, < 5.0)
-    jekyll-coffeescript (1.1.1)
+      toml (~> 0.1.0)
+    jekyll-coffeescript (1.0.0)
       coffee-script (~> 2.2)
-      coffee-script-source (~> 1.11.1)
-    jekyll-commonmark (1.3.1)
-      commonmarker (~> 0.14)
-      jekyll (>= 3.7, < 5.0)
-    jekyll-commonmark-ghpages (0.1.6)
-      commonmarker (~> 0.17.6)
-      jekyll-commonmark (~> 1.2)
-      rouge (>= 2.0, < 4.0)
-    jekyll-default-layout (0.1.4)
-      jekyll (~> 3.0)
-    jekyll-feed (0.15.1)
-      jekyll (>= 3.7, < 5.0)
     jekyll-gist (1.5.0)
       octokit (~> 4.2)
-    jekyll-github-metadata (2.13.0)
-      jekyll (>= 3.4, < 5.0)
-      octokit (~> 4.0, != 4.4.0)
-    jekyll-mentions (1.6.0)
-      html-pipeline (~> 2.3)
-      jekyll (>= 3.7, < 5.0)
-    jekyll-optional-front-matter (0.3.2)
-      jekyll (>= 3.0, < 5.0)
+    jekyll-mentions (0.1.3)
+      html-pipeline (~> 1.9.0)
+      jekyll (~> 2.0)
     jekyll-paginate (1.1.0)
-    jekyll-readme-index (0.3.0)
-      jekyll (>= 3.0, < 5.0)
-    jekyll-redirect-from (0.16.0)
-      jekyll (>= 3.3, < 5.0)
-    jekyll-relative-links (0.6.1)
-      jekyll (>= 3.3, < 5.0)
-    jekyll-remote-theme (0.4.3)
-      addressable (~> 2.0)
-      jekyll (>= 3.5, < 5.0)
-      jekyll-sass-converter (>= 1.0, <= 3.0.0, != 2.0.0)
-      rubyzip (>= 1.3.0, < 3.0)
-    jekyll-sass-converter (1.5.2)
-      sass (~> 3.4)
-    jekyll-scholar (5.16.0)
-      bibtex-ruby (~> 4.0, >= 4.0.13)
+    jekyll-redirect-from (0.6.2)
+      jekyll (~> 2.0)
+    jekyll-sass-converter (1.2.0)
+      sass (~> 3.2)
+    jekyll-scholar (4.2.2)
+      bibtex-ruby (>= 4.0.8)
       citeproc-ruby (~> 1.0)
       csl-styles (~> 1.0)
-      jekyll (~> 3.0)
-    jekyll-seo-tag (2.7.1)
-      jekyll (>= 3.8, < 5.0)
-    jekyll-sitemap (1.4.0)
-      jekyll (>= 3.7, < 5.0)
-    jekyll-swiss (1.0.0)
-    jekyll-theme-architect (0.1.1)
-      jekyll (~> 3.5)
-      jekyll-seo-tag (~> 2.0)
-    jekyll-theme-cayman (0.1.1)
-      jekyll (~> 3.5)
-      jekyll-seo-tag (~> 2.0)
-    jekyll-theme-dinky (0.1.1)
-      jekyll (~> 3.5)
-      jekyll-seo-tag (~> 2.0)
-    jekyll-theme-hacker (0.1.2)
-      jekyll (> 3.5, < 5.0)
-      jekyll-seo-tag (~> 2.0)
-    jekyll-theme-leap-day (0.1.1)
-      jekyll (~> 3.5)
-      jekyll-seo-tag (~> 2.0)
-    jekyll-theme-merlot (0.1.1)
-      jekyll (~> 3.5)
-      jekyll-seo-tag (~> 2.0)
-    jekyll-theme-midnight (0.1.1)
-      jekyll (~> 3.5)
-      jekyll-seo-tag (~> 2.0)
-    jekyll-theme-minimal (0.1.1)
-      jekyll (~> 3.5)
-      jekyll-seo-tag (~> 2.0)
-    jekyll-theme-modernist (0.1.1)
-      jekyll (~> 3.5)
-      jekyll-seo-tag (~> 2.0)
-    jekyll-theme-primer (0.5.4)
-      jekyll (> 3.5, < 5.0)
-      jekyll-github-metadata (~> 2.9)
-      jekyll-seo-tag (~> 2.0)
-    jekyll-theme-slate (0.1.1)
-      jekyll (~> 3.5)
-      jekyll-seo-tag (~> 2.0)
-    jekyll-theme-tactile (0.1.1)
-      jekyll (~> 3.5)
-      jekyll-seo-tag (~> 2.0)
-    jekyll-theme-time-machine (0.1.1)
-      jekyll (~> 3.5)
-      jekyll-seo-tag (~> 2.0)
-    jekyll-titles-from-headings (0.5.3)
-      jekyll (>= 3.3, < 5.0)
-    jekyll-watch (2.2.1)
+      jekyll (~> 2.0)
+    jekyll-sitemap (0.6.0)
+    jekyll-watch (1.5.1)
       listen (~> 3.0)
-    jemoji (0.12.0)
-      gemoji (~> 3.0)
-      html-pipeline (~> 2.2)
-      jekyll (>= 3.0, < 5.0)
-    kramdown (2.3.1)
-      rexml
-    kramdown-parser-gfm (1.1.0)
-      kramdown (~> 2.0)
-    latex-decode (0.3.2)
-    liquid (4.0.3)
-    listen (3.5.1)
+    jemoji (0.3.0)
+      gemoji (~> 2.0)
+      html-pipeline (~> 1.9)
+      jekyll (~> 2.0)
+    kramdown (1.3.1)
+    latex-decode (0.4.0)
+    liquid (2.6.1)
+    listen (3.8.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     loofah (2.9.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
+    maruku (0.7.0)
+    matrix (0.4.2)
     mercenary (0.3.6)
     method_source (1.0.0)
-    minima (2.5.1)
-      jekyll (>= 3.5, < 5.0)
-      jekyll-feed (~> 0.9)
-      jekyll-seo-tag (~> 2.1)
     minitest (5.14.4)
     multipart-post (2.1.1)
     namae (1.1.1)
@@ -272,12 +154,16 @@ GEM
     octokit (4.21.0)
       faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
-    pathutil (0.16.2)
-      forwardable-extended (~> 2.6)
+    parslet (1.5.0)
+      blankslate (~> 2.0)
     popper_js (2.9.2)
+    posix-spawn (0.3.15)
     public_suffix (4.0.6)
+    pygments.rb (0.6.0)
+      posix-spawn (~> 0.3.6)
+      yajl-ruby (~> 1.1.0)
     racc (1.5.2)
-    rack (2.2.3)
+    rack (2.2.6.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails-dom-testing (2.0.3)
@@ -295,12 +181,9 @@ GEM
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.5)
-    rouge (3.26.0)
-    ruby-enum (0.9.0)
-      i18n
+    rdiscount (2.1.7)
+    redcarpet (3.1.2)
     ruby2_keywords (0.0.4)
-    rubyzip (2.3.0)
     safe_yaml (1.0.5)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
@@ -318,28 +201,21 @@ GEM
     sawyer (0.8.2)
       addressable (>= 2.3.5)
       faraday (> 0.8, < 2.0)
-    simpleidn (0.2.1)
-      unf (~> 0.1.4)
     sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    sprockets-rails (3.2.2)
-      actionpack (>= 4.0)
-      activesupport (>= 4.0)
+    sprockets-rails (3.4.2)
+      actionpack (>= 5.2)
+      activesupport (>= 5.2)
       sprockets (>= 3.0.0)
-    terminal-table (1.8.0)
-      unicode-display_width (~> 1.1, >= 1.1.1)
     thor (1.1.0)
     thread_safe (0.3.6)
     tilt (2.0.10)
-    typhoeus (1.4.0)
-      ethon (>= 0.9.0)
+    toml (0.1.2)
+      parslet (~> 1.5.0)
     tzinfo (1.2.9)
       thread_safe (~> 0.1)
-    unf (0.1.4)
-      unf_ext
-    unf_ext (0.0.7.7)
-    unicode-display_width (1.7.0)
+    yajl-ruby (1.1.0)
     zeitwerk (2.4.2)
 
 PLATFORMS
@@ -348,7 +224,7 @@ PLATFORMS
 
 DEPENDENCIES
   activesupport
-  bibtex-ruby
+  bibtex-ruby (>= 5.1.0)
   bootstrap
   github-pages
   jekyll