Add github deploy workflow and dependabot

.github/dependabot.yml

@@ -0,0 +1,11 @@
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+version: 2
+updates:
+  - package-ecosystem: "bundler" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "daily"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/deploy-production.yml

@@ -0,0 +1,28 @@
+name: Build and Deploy
+on:
+  push:
+    branches:
+      - main
+permissions:
+  contents: write
+jobs:
+  build-and-deploy:
+    concurrency: ci-${{ github.ref }} # Recommended if you intend to make multiple deployments in quick succession.
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout 🛎️
+        uses: actions/checkout@v4
+        with:
+          submodules: 'true'
+
+      - name: Install and Build 🔧
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+      - run: bundle exec jekyll build --config _config.yml,_config_production.yml
+
+      - name: Deploy 🚀
+        uses: JamesIves/github-pages-deploy-action@v4
+        with:
+          folder: _site # The folder the action should deploy.
+          branch: gh-pages