adding google cloud builder profile to skaffold

skaffold.yaml

@@ -5,8 +5,13 @@ build:
   - imageName: gcr.io/gcp-demo-200100/hello-world-nginx
   kaniko:
     gcsBucket: skaffold-kaniko-contexts
-    pullSecret: /Users/tariqislam/opt/sa/kaniko-sa.json
+    pullSecret: /home/tariqislam/opt/sa/kaniko-sa.json
 deploy:
   kubectl:
     manifests:
       - hello-world-nginx*
+profiles:
+  - name: gcb
+    build:
+      googleCloudBuild:
+        projectId: gcp-demo-200100