Insert new graphics into posts

[xavortm]

Is your enhancement related to a problem? Please describe.

Add the graphics attached as comments into posts. Of course, we can create new issues for this as a request too, I am just tracking the few new additions here. I will open a PR after I have a few done.

For example, one is attached in the Designs section and it is for https://gutenberg.10up.com/reference/Themes/theme-json (near the header)

Designs

https://gutenberg.10up.com/reference/Themes/theme-json

https://gutenberg.10up.com/training/patterns

Describe alternatives you've considered

No response

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