Split up _topics/automation_management_providers

Currently all automation providers are in one big
`managing_providers/_topics/automation_management_providers.md` file
where the other manager types each have their own dedicated pages.

Author: agrare

_data/site_menu.yml

@@ -84,7 +84,27 @@ using:
             path: "/docs/reference/latest/managing_providers/configuration_management_providers/red_hat_satellite_6.html"
             desc: "Managing Red Hat Satellite 6 Providers"
 
-        - title: Automation Management Providers
+        - title: Automation Providers
+          children:
+          - title: Ansible Tower
+            path: "/docs/reference/latest/managing_providers/automation_management_providers/ansible_tower.html"
+            desc: "Managing Ansible Tower Providers"
+          - title: Automate
+            path: "/docs/reference/latest/managing_providers/automation_management_providers/automate.html"
+            desc: "Managing Automate"
+          - title: Embedded Ansible
+            path: "/docs/reference/latest/managing_providers/automation_management_providers/embedded_ansible.html"
+            desc: "Managing Embedded Ansible"
+          - title: Embedded Terraform
+            path: "/docs/reference/latest/managing_providers/automation_management_providers/embedded_terraform.html"
+            desc: "Managing Embedded Terraform"
+          - title: Embedded Workflows
+            path: "/docs/reference/latest/managing_providers/automation_management_providers/embedded_workflows.html"
+            desc: "Managing Embedded Workflows"
+          - title: Terraform Enterprise
+            path: "/docs/reference/latest/managing_providers/automation_management_providers/terraform_enterprise.html"
+            desc: "Managing Terraform Enterprise Providers"
+
           path: "/docs/reference/latest/managing_providers/index.html#automation-management-provider"
           desc: "Management tool to simplify automation operators for resources"
 

managing_providers/_topics/automation_management_providers.md

@@ -8,7 +8,7 @@ Credentials are utilized by {{ site.data.product.title_short }} for authenticati
 
 1.  Browse to menu: **Automation > Ansible > Credentials**.
 
-2.  Click **Configuration**, then ![Add New Credential](../images/1862.png) (**Add New Credential**).
+2.  Click **Configuration**, then ![Add New Credential](../../images/1862.png) (**Add New Credential**).
 
 3.  Provide a **Name** for the credential.