Add pkgdown workflow

Author: lalitrolaniya

.github/workflows/pkgdown.yaml

@@ -0,0 +1,37 @@
+name: pkgdown
+
+on:
+  push:
+    branches: [main, master]
+  release:
+    types: [published]
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+jobs:
+  pkgdown:
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::pkgdown
+          needs: website
+      - name: Build site
+        run: pkgdown::build_site_github_pages(new_process = FALSE, install = TRUE)
+        shell: Rscript {0}
+      - uses: actions/upload-pages-artifact@v3
+        with:
+          path: docs
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4