:memo: docs: Use updated org chart (closes #308)
    
    This Pull Request embeds the Fedora Project organization chart from the
    Fedora Project documentation itself. While the sources for this still
    exists inside of this repo, the rendered PNG is now linked directly from
    the Fedora Project docs repo itself. As a result, this page would now
    show the June 2023 version of the org chart.
    
    I chose to use a hard-coded URL instead of a `xref` so that the org
    chart would appear in local previews of the site. I also do not know if
    it is possible to `xref` to an image anyways.
    
    This does not address @kparal's original feedback of an enlarged version
    of the org chart, but that is also not something we can directly control
    ourselves on the content management side of things. There is a Fedora
    Docs UI issue currently open that requests this kind of functionality,
    however.
    
    ref: https://gitlab.com/fedora/docs/docs-website/ui-bundle/-/issues/11
    
    Closes https://pagure.io/fedora-commops/issue/308.
    
    Signed-off-by: Justin W. Flory (he/him) <jwf@redhat.com>