Create jekyll-gh-pages.yml

As a devx developer I want to publish GH Pages for several repositories.  The [gh pages documentation](https://docs.github.com/en/pages/getting-started-with-github-pages/about-github-pages) is detailed.  The following key points contributed to my decision to add this change:
* Currently there a 2 ways to generate GH Pages on a repository.  The documentation calls these "sources".  One is a manual push; the other uses a special github action deployment workflow.
* After June 2024, only the github action source will be used.
* Best practice around documentation is that (1) a special github "environment" should be created called "github-pages" and (2) a unique branch "gh-pages" should be created alongside the "main".  The environment is a set of rules that limits documentation deployments from specific branches and the unique branch means that "code" and site-documentation are kept separate.

Therefore, I created the github-pages environment, the gh-pages branch, and the github action workflow defined in this PR

.github/workflows/jekyll-gh-pages.yml

@@ -0,0 +1,51 @@
+# Sample workflow for building and deploying a Jekyll site to GitHub Pages
+name: Deploy Jekyll with GitHub Pages dependencies preinstalled
+
+on:
+  # Runs on pushes targeting the default branch
+  push:
+    branches: ["main"]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  # Build job
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Pages
+        uses: actions/configure-pages@v5
+      - name: Build with Jekyll
+        uses: actions/jekyll-build-pages@v1
+        with:
+          source: ./
+          destination: ./_site
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+
+  # Deployment job
+  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