Fixed errors in landing page metadata

Author: TomArcherMsft

articles/ansible/index.yml

@@ -3,16 +3,14 @@ documentType: LandingData
 title: Ansible in Azure Documentation
 metadata:
   title: Ansible in Azure Documentation - Tutorials, samples, reference, and resources
-  meta.description: Learn how to use Ansible to automate cloud provisioning, configuration management, and application deployments.
-  services: terraform
+  description: Learn how to use Ansible to automate cloud provisioning, configuration management, and application deployments.
+  ms.service: ansible
+  keywords: ansible, roles, matrix, version, azure, devops
   author: tomarcher
   manager: jeconnoc
-  ms.service: ansible
-  ms.tgt_pltfrm: na
-  ms.devlang: devops
+  ms.author: tarcher
   ms.topic: landing-page
   ms.date: 08/15/2018
-  ms.author: tarcher
 abstract:
   description: Use <a href="http://www.ansible.com">Ansible</a> to automate cloud provisioning, configuration management, and application deployments.
 sections: