Auto-generate annotation docs (#11820)

.github/workflows/ci.yaml

@@ -69,6 +69,8 @@ jobs:
             baseimage:
               - 'NGINX_BASE'
               - 'images/nginx-1.25/**'
+            docs:
+              - '**/*.md'
 
   test-go:
     runs-on: ubuntu-latest
@@ -92,6 +94,27 @@ jobs:
       - name: Run test
         run: make test
 
+        
+  verify-docs:
+    name: Verify Doc generation
+    runs-on: ubuntu-latest
+    needs: changes
+    if: |
+      (needs.changes.outputs.go == 'true') || (needs.changes.outputs.docs == 'true') || ${{ github.event.workflow_dispatch.run_e2e == 'true' }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+      - name: Get go version
+        run: echo "GOLANG_VERSION=$(cat GOLANG_VERSION)" >> $GITHUB_ENV
+      - name: Set up Go
+        id: go
+        uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
+        with:
+          go-version: ${{ env.GOLANG_VERSION }}
+          check-latest: true
+      - name: Verify Docs
+        run: make verify-docs
+
   build:
     name: Build
     runs-on: ubuntu-latest