Action: Build on example

Author: lamATnginx

.github/workflows/previews.yml

@@ -9,10 +9,16 @@ on:
       - "*"
 
 jobs:
-    build:
+    build-example:
       runs-on: ubuntu-latest
       steps:
-        - name: Trigger `Build and deploy` workflow in `documentation` repo
+        - name: Build the exampleSite docs
+          uses: ./.github/workflows/hugo-build-test
+
+    build-documentation:
+      runs-on: ubuntu-latest
+      steps:
+        - name: Trigger 'Build and deploy' workflow in 'documentation' repo
           run: |
             repo_owner="nginx" 
             repo_name="documentation"