Add doc files

Author: stever-sas

.github/CODEOWNERS

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+# GitHub Code Owners
+* @sas-institute-rnd-internal/ospo-maintainers

.github/sas-settings/access.yaml

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+teams:
+  - name: all
+    role: Read
+  - name: ospo-contributors
+    role: Write
+  - name: ospo-maintainers
+    role: Maintain

.github/workflows/deploy-doc.yml

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+name: Deploy Doc Website to GitHub Pages
+
+on:
+  push:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: write
+
+defaults:
+  run:
+    shell: bash
+    working-directory: ./website
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          cache: "npm"
+          cache-dependency-path: website/package-lock.json
+      - run: npm ci
+
+      - name: Build website
+        run: npm run build
+
+      # Popular action to deploy to GitHub Pages:
+      # Docs: https://github.com/peaceiris/actions-gh-pages#%EF%B8%8F-docusaurus
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          # Build output to publish to the `gh-pages` branch:
+          publish_dir: ./website/build