Table shows unevaluated Markdown

[cormullion]

I was browsing this table - https://docs.juliaplots.org/latest/generated/graph_attributes/ - and noticed that the formatting wasn't done:

Looking at the code, it's pretty complicated, so I can't make a PR for this... 😞

[t-bltg]

Hum, yes, I think those are raw html tables.
Not sure if this can be rendered as regular markdown ...