Fix: #14523 Add alt-text codeblock to Images for workflow_template.rst (#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

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

Author: Ratangulati