[WIP] documentation: Remove assemble from list of windows modules, plus tweaks (#21859)

* Remove assemble from list of windows modules, but advise you can delegate appropriate modules to localhost.  Try to fix list of usable on windows modules to appear as a list instead of on one line.

* Update intro_windows.rst

Minor edit

docs/docsite/rst/intro_windows.rst

@@ -312,8 +312,8 @@ What modules are available
 Most of the Ansible modules in core Ansible are written for a combination of Linux/Unix machines and arbitrary web services, though there are various
 Windows-only modules. These are listed in the `"windows" subcategory of the Ansible module index <http://docs.ansible.com/list_of_windows_modules.html>`_.
 
-In addition, the following core modules work with Windows:
-    assemble
+In addition, the following core modules work with Windows::
+
     fetch
     raw
     script
@@ -329,7 +329,10 @@ In addition, the following core modules work with Windows:
     pause
     set_fact
 
-Browse this index to see what is available.
+
+Some modules can be utilised in playbooks that target windows by delegating to localhost, depending on what you are
+attempting to achieve.  For example, assemble can be used to create a file on your ansible controller that is then 
+sent to your windows targets using win_copy.
 
 In many cases, it may not be necessary to even write or use an Ansible module.