Update _index.md

Signed-off-by: Naman Verma <[email protected]>

Author: Namanv0509

content/learning-paths/11111111-1111-1111-1111-111111111111/mastering-service-meshes-for-developers/introduction-to-service-meshes/deploy-an-application/_index.md

@@ -90,7 +90,7 @@ This will do 3 things:
 1. Deploys all the BookInfo services in the `default` namespace.
 1. Deploys the virtual service and gateway needed to expose the BookInfo's productpage application in the `default` namespace.
 
-### Verify Bookinfo deployment
+#### Verify Bookinfo deployment
 
 
 1. Verify that the deployments are all in a state of AVAILABLE before continuing.