update with last modification date as well as newer deps

docs/.gitignore

@@ -1,3 +1,5 @@
+.bundle
+vendor
 _site
 .sass-cache
 .jekyll-metadata

docs/Gemfile

@@ -1,4 +1,4 @@
-#source "https://rubygems.org"
+source "https://rubygems.org"
 #ruby RUBY_VERSION
 
 # Hello! This is where you manage which Jekyll version is used to run.
@@ -9,20 +9,24 @@
 #
 # This will help ensure the proper Jekyll version is running.
 # Happy Jekylling!
-gem "jekyll", "3.4.5"
+gem "jekyll", "~> 3.0"
 
 # This is the default theme for new Jekyll sites. You may change this to anything you like.
-gem "minima", "~> 2.0"
+gem "minima", "~> 2.5"
 
+gem 'kramdown-parser-gfm'
+
+gem 'base64', '~> 0.1.0'
+gem 'bigdecimal', '~> 3.1.0'
 # If you want to use GitHub Pages, remove the "gem "jekyll"" above and
 # uncomment the line below. To upgrade, run `bundle update github-pages`.
 # gem "github-pages", group: :jekyll_plugins
 
 # If you have any plugins, put them here!
 group :jekyll_plugins do
    gem "jekyll-feed", "~> 0.6"
+   gem 'jekyll-last-modified-at'
 end
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
-

docs/Gemfile.lock

@@ -1,58 +1,90 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.1)
-      public_suffix (~> 2.0, >= 2.0.2)
+    addressable (2.8.7)
+      public_suffix (>= 2.0.2, < 7.0)
+    base64 (0.1.1)
+    bigdecimal (3.1.8)
     colorator (1.1.0)
-    ffi (1.9.18)
+    concurrent-ruby (1.3.3)
+    csv (3.3.0)
+    em-websocket (0.5.3)
+      eventmachine (>= 0.12.9)
+      http_parser.rb (~> 0)
+    eventmachine (1.2.7)
+    ffi (1.17.0-arm64-darwin)
     forwardable-extended (2.6.0)
-    jekyll (3.4.5)
+    http_parser.rb (0.8.0)
+    i18n (1.14.5)
+      concurrent-ruby (~> 1.0)
+    jekyll (3.10.0)
       addressable (~> 2.4)
       colorator (~> 1.0)
+      csv (~> 3.0)
+      em-websocket (~> 0.5)
+      i18n (>= 0.7, < 2)
       jekyll-sass-converter (~> 1.0)
-      jekyll-watch (~> 1.1)
-      kramdown (~> 1.3)
-      liquid (~> 3.0)
+      jekyll-watch (~> 2.0)
+      kramdown (>= 1.17, < 3)
+      liquid (~> 4.0)
       mercenary (~> 0.3.3)
       pathutil (~> 0.9)
-      rouge (~> 1.7)
+      rouge (>= 1.7, < 4)
       safe_yaml (~> 1.0)
-    jekyll-feed (0.9.2)
-      jekyll (~> 3.3)
-    jekyll-sass-converter (1.5.0)
+      webrick (>= 1.0)
+    jekyll-feed (0.17.0)
+      jekyll (>= 3.7, < 5.0)
+    jekyll-last-modified-at (1.3.2)
+      jekyll (>= 3.7, < 5.0)
+    jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
-    jekyll-watch (1.5.0)
-      listen (~> 3.0, < 3.1)
-    kramdown (1.13.2)
-    liquid (3.0.6)
-    listen (3.0.8)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
+    jekyll-seo-tag (2.8.0)
+      jekyll (>= 3.8, < 5.0)
+    jekyll-watch (2.2.1)
+      listen (~> 3.0)
+    kramdown (2.4.0)
+      rexml
+    kramdown-parser-gfm (1.1.0)
+      kramdown (~> 2.0)
+    liquid (4.0.4)
+    listen (3.9.0)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    minima (2.1.1)
-      jekyll (~> 3.3)
-    pathutil (0.14.0)
+    minima (2.5.1)
+      jekyll (>= 3.5, < 5.0)
+      jekyll-feed (~> 0.9)
+      jekyll-seo-tag (~> 2.1)
+    pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (2.0.5)
-    rb-fsevent (0.10.2)
-    rb-inotify (0.9.10)
-      ffi (>= 0.5.0, < 2)
-    rouge (1.11.1)
-    safe_yaml (1.0.4)
-    sass (3.5.1)
+    public_suffix (6.0.0)
+    rb-fsevent (0.11.2)
+    rb-inotify (0.11.1)
+      ffi (~> 1.0)
+    rexml (3.3.1)
+      strscan
+    rouge (3.30.0)
+    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)
+    strscan (3.1.0)
+    webrick (1.8.1)
 
 PLATFORMS
-  ruby
+  arm64-darwin-23
 
 DEPENDENCIES
-  jekyll (= 3.4.5)
+  base64 (~> 0.1.0)
+  bigdecimal (~> 3.1.0)
+  jekyll (~> 3.0)
   jekyll-feed (~> 0.6)
-  minima (~> 2.0)
+  jekyll-last-modified-at
+  kramdown-parser-gfm
+  minima (~> 2.5)
   tzinfo-data
 
 BUNDLED WITH
-   1.14.6
+   2.5.14

docs/Makefile

@@ -0,0 +1,7 @@
+# first/one time:
+# brew install ruby
+# gem install bundler
+# bundle install
+
+preview:
+	bundle exec jekyll serve --incremental --watch  --livereload

docs/_config.yml

@@ -28,8 +28,13 @@ facebook:
 # Build settings
 markdown: kramdown
 theme: minima
-gems:
+plugins:
   - jekyll-feed
+  - jekyll-last-modified-at
 exclude:
   - Gemfile
   - Gemfile.lock
+  - vendor
+
+minima:
+  skin: auto

docs/_layouts/home.html

@@ -0,0 +1,47 @@
+---
+layout: default
+---
+
+<div class="home">
+  {%- if page.title -%}
+    <h1 class="page-heading">{{ page.title }}</h1>
+  {%- endif -%}
+
+  {{ content }}
+
+  {%- if site.posts.size > 0 -%}
+    <h2 class="post-list-heading">{{ page.list_title | default: "Posts" }}</h2>
+    <ul class="post-list">
+      {%- for post in site.posts -%}
+      <li>
+
+        {%- assign date_format = site.minima.date_format | default: "%b %-d, %Y" -%}
+        <span class="post-meta">
+          <time datetime="{{ post.date | date_to_xmlschema }}">
+            {% assign date_format = site.minima.date_format | default: "%b %-d, %Y" %}
+            Created on {{ post.date | date: date_format }}
+          </time>
+          {% assign created_date = post.date | date: "%Y-%m-%d" %}
+          {% assign modified_date = post.last_modified_at | date: "%Y-%m-%d" %}
+          {% if post.last_modified_at and created_date != modified_date %}
+            • Last updated on <time datetime="{{ post.last_modified_at | date_to_xmlschema }}">
+            {{ post.last_modified_at | date: date_format }}
+            </time>
+          {% endif %}
+        </span>
+        <h3>
+          <a class="post-link" href="{{ post.url | relative_url }}">
+            {{ post.title | escape }}
+          </a>
+        </h3>
+        {%- if site.show_excerpts -%}
+          {{ post.excerpt }}
+        {%- endif -%}
+      </li>
+      {%- endfor -%}
+    </ul>
+
+    <p class="rss-subscribe">subscribe <a href="{{ "/feed.xml" | relative_url }}">via RSS</a></p>
+  {%- endif -%}
+
+</div>

docs/_layouts/post.html

@@ -8,8 +8,15 @@ <h1 class="post-title" itemprop="name headline">{{ page.title | escape }}</h1>
     <p class="post-meta">
       <time datetime="{{ page.date | date_to_xmlschema }}" itemprop="datePublished">
         {% assign date_format = site.minima.date_format | default: "%b %-d, %Y" %}
-        {{ page.date | date: date_format }}
+        Created on {{ page.date | date: date_format }}
       </time>
+      {% assign created_date = page.date | date: "%Y-%m-%d" %}
+      {% assign modified_date = page.last_modified_at | date: "%Y-%m-%d" %}
+      {% if page.last_modified_at and created_date != modified_date %}
+        • Last updated on <time datetime="{{ page.last_modified_at | date_to_xmlschema }}" itemprop="dateModified">
+        {{ page.last_modified_at | date: date_format }}
+        </time>
+      {% endif %}
       {% if page.author %}
         • <span itemprop="author" itemscope itemtype="http://schema.org/Person"><span itemprop="name">{{ page.author }}</span></span>
       {% endif %}</p>