Added Social Image to Datafaker using Allscreenshots.

[bodiam]

Hi all, I noticed we don't have an Open Graph image, so I made one using allscreenshots, which I also run

[what-the-diff]

PR Summary

• New Section Addition in license.md
  A new section named "Third-party services" has been added. This notes the usage of Allscreenshots.com for creating social media-based images.

• Footer Update in home.html
  The home.html now features a footer that credits Allscreenshots.com for producing social media images for Datafaker. It also contains a direct link for increased accessibility.

• Improvement to mkdocs.yml
  The mkdocs.yml has been updated with the new plugin allscreenshots-og-screenshot. This change brings enriched screenshot capabilities, bolstering the visual elements available for users.

[codecov-commenter]

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.42%. Comparing base (496007d) to head (81b37aa).
⚠️ Report is 2 commits behind head on main.
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Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1743      +/-   ##
============================================
+ Coverage     92.32%   92.42%   +0.10%     
- Complexity     3439     3442       +3     
============================================
  Files           338      338              
  Lines          6785     6785              
  Branches        670      670              
============================================
+ Hits           6264     6271       +7     
+ Misses          355      351       -4     
+ Partials        166      163       -3     

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[kingthorin]

Seems good to me