Add GitHub Actions workflow for documentation publishing

This workflow generates and publishes DocC documentation to GitHub Pages upon pushes to the main branch or when a version tag is created.

Author: hoseiocean

.github/workflows/documentation.yml

@@ -0,0 +1,58 @@
+# .github/workflows/documentation.yml
+# Generates and publishes DocC documentation to GitHub Pages
+
+name: Documentation
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - 'v*'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: macos-14
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Xcode
+        uses: maxim-lobanov/setup-xcode@v1
+        with:
+          xcode-version: latest-stable
+
+      - name: Build Documentation
+        run: |
+          swift package generate-documentation \
+            --target DataStructuresKit \
+            --disable-indexing \
+            --transform-for-static-hosting \
+            --hosting-base-path DataStructuresKit \
+            --output-path docs
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: docs
+
+  deploy:
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4