fixes, mainly revamp config specification and describe compat image

site/source/service-packaging/specification/index.rst

@@ -1,17 +1,107 @@
 .. _service-packaging-spec:
 
-===============================
-Service Packaging Specification
-===============================
+=============
+Specification
+=============
 
 The following guides provide an in depth overview of the full capabilities available for packaging a service.
 
+.. raw:: html
+
+  <div class="topics-grid grid-container full">
+
+  <div class="grid-x grid-margin-x">
+
+.. topic-box::
+  :title: Docker
+  :link: docker
+  :class: large-4
+  :anchor: View
+
+  Learn how to setup the main Docker image for your service. 
+
+.. topic-box::
+  :title: Manifest
+  :link: manifest
+  :class: large-4
+  :anchor: Begin
+
+  Understand the function of a Manifest file and its type.
+
+.. topic-box::
+  :title: Config Spec
+  :link: config-spec
+  :class: large-4
+  :anchor: Begin
+
+  Learn the purpose and utility of a config specification.
+
+.. topic-box::
+  :title: Properties
+  :link: properties
+  :class: large-4
+  :anchor: View
+
+  Understand the purpose and requirements of service properties.
+
+.. topic-box::
+  :title: Dependencies
+  :link: dependencies
+  :class: large-4
+  :anchor: View
+
+  Learn how to configure dependency options.
+
+.. topic-box::
+  :title: Backups
+  :link: advanced
+  :class: large-4
+  :anchor: View
+
+  Learn how to configure backup options.
+
+.. topic-box::
+  :title: Instructions
+  :link: instructions
+  :class: large-4
+  :anchor: View
+
+  Understand how an instructions file is relevant to a service.
+
+.. topic-box::
+  :title: Package
+  :link: package
+  :class: large-4
+  :anchor: View
+
+  Learn how to package service components into a single file format.
+
+.. topic-box::
+  :title: Wrapper
+  :link: wrapper
+  :class: large-4
+  :anchor: View
+
+  Understand the purpose of a wrapper repository.
+
+.. topic-box::
+  :title: Submission
+  :link: submission
+  :class: large-4
+  :anchor: View
+
+  Learn about how to submit a package for review to a marketplace.
+
+.. raw:: html
+
+  </div></div>
+
 .. toctree::
   :hidden:
 
   docker
   manifest
-  config
+  config-spec
   properties
   dependencies
   backups
@@ -20,3 +110,4 @@ The following guides provide an in depth overview of the full capabilities avail
   wrapper
   makefile
   submission
+  compat/index