feat: add validation scripts + github workflow

.github/workflows/validate.yml

@@ -0,0 +1,29 @@
+name: Public deployment
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  deploy:
+    name: Deploy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: 'package.json'
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm i
+
+      - name: Validate vocab links
+        run: pnpm run validate:vocab-links
+
+      - name: Validate JSON-LD
+        run: pnpm run validate:jsonld