Misc docs fixes

* Revise and link inline to the lists of modules

* Fix jinja2 objects.inv fallback path

* Fix bolding of deprecation marker

* Change module_support to link to lists via :doc:
  That links to the top of the page instead of a section.

* Add a short text for each list of maintained modules
* Change maintenance info to only display on core and network modules

docs/templates/list_of_CATEGORY_modules.rst.j2

@@ -1,6 +1,10 @@
 @{ title }@ Modules
 @{ '`' * title | length }@````````
 
+{% if blurb %}
+@{ blurb }@
+
+{% endif %}
 .. toctree:: :maxdepth: 1
 {% if category['_modules'] %}
 
@@ -16,7 +20,7 @@
 .. toctree:: :maxdepth: 1
 
 {% for module in info['_modules'] | sort %}
-  @{ module }@{% if module_info[module]['deprecated'] %}**(D)**{% endif%} - @{ module_info[module]['doc']['short_description'] }@ <@{ module }@_module>
+  @{ module }@{% if module_info[module]['deprecated'] %} **(D)**{% endif%} - @{ module_info[module]['doc']['short_description'] }@ <@{ module }@_module>
 {% endfor %}
 
 {% endfor %}

docs/templates/modules_by_support.rst.j2

@@ -6,7 +6,7 @@ Modules Maintained by the @{ maintainers }@
 .. toctree:: :maxdepth: 1
 
 {% for module in modules | sort %}
-  @{ module }@{% if module_info[module]['deprecated'] %}**(D)**{% endif %} - @{ module_info[module]['doc']['short_description'] }@ <@{ module }@_module>
+  @{ module }@{% if module_info[module]['deprecated'] %} **(D)**{% endif %} - @{ module_info[module]['doc']['short_description'] }@ <@{ module }@_module>
 {% endfor %}
 
 .. note::

docs/templates/plugin.rst.j2

@@ -279,15 +279,13 @@ Status
 This module is flagged as **@{cur_state}@** which means that @{module_states[cur_state]}@.
 {% endfor %}
 {% endif %}
+{% if metadata.supported_by in ('core', 'network') %}
 
-{% if metadata.supported_by %}
+Maintenance Info
+~~~~~~~~~~~~~~~~
 
-Support Level
-~~~~~~~~~~~~~
-
-This module is maintained by @{ support[metadata.supported_by] }@
-
-For more information on what this means please read :doc:`modules_support`.
+For more information about Red Hat's this support of this module, please
+refer to this `knowledge base article<https://access.redhat.com/articles/rhel-top-support-policies>`
 
 {% endif %}
 {% endif %}