Fix: ansible#14523 Add alt-text codeblock to Images for workflow_temp…

…late.rst (ansible#14604)

* add alt to images in workflow_templates.rst

Signed-off-by: Ratan Gulati <ratangulati.dev@gmail.com>

* add alt to images in workflow_templates.rst

Signed-off-by: Ratan Gulati <ratangulati.dev@gmail.com>

* Update workflow_templates.rst

* Revised proposed alt text for workflow_templates.rst

---------

Signed-off-by: Ratan Gulati <ratangulati.dev@gmail.com>
Co-authored-by: TVo <thavo@redhat.com>