Add dark mode

.github/workflows/jekyll.yml

@@ -0,0 +1,51 @@
+name: Deploy Jekyll site to Pages
+
+on:
+  push:
+    branches: ["gh-pages"]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: '3.3'
+          bundler-cache: true
+
+      - name: Setup Pages
+        id: pages
+        uses: actions/configure-pages@v5
+
+      - name: Build with Jekyll
+        run: bundle exec jekyll build --baseurl "${{ steps.pages.outputs.base_path }}"
+        env:
+          JEKYLL_ENV: production
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

Gemfile

@@ -1,22 +1,13 @@
 source "https://rubygems.org"
-ruby RUBY_VERSION
 
-# gem "jekyll", "3.6.2"
+gem "jekyll", "~> 4.4"
 
-# to use GitHub Pages
-# gem "github-pages", group: :jekyll_plugins
-
-gem "github-pages", "~> 232", group: :jekyll_plugins
-
-# If you have any plugins, put them here!
 group :jekyll_plugins do
-   gem "jemoji"
-   gem 'jekyll-redirect-from'
-   gem "jekyll-remote-theme"
+  gem "jemoji"
+  gem "jekyll-redirect-from"
 end
 
-# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
-gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
-
+# Windows / WSL does not include zoneinfo files
+gem "tzinfo-data", platforms: [:mingw, :mswin, :x64_mingw, :jruby]
 
-gem "webrick", "~> 1.8"
+gem "webrick", "~> 1.9"