Add deploy action

Author: BrianMitchL

.github/workflows/deploy.yml

@@ -0,0 +1,24 @@
+name: Deploy
+on:
+  push:
+    branches:
+      - build
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup node
+        uses: actions/setup-node@v1
+        with:
+          node-version: '14.x'
+      - name: Install dependencies
+        run: npm ci
+      - name: Build site
+        run: npm run build
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_branch: master
+          publish_dir: ./dist