Incorrect handling of list entry text

[sidju]

To add multiple lines of text to a list entry one should indent the text below the entry to signify that it belongs to it. This sign isn't currently looked for by termimad, so the text of a sub-list entry is highlighted as a codeblock (since it is indented 4 spaces).

Adding some statefulness to the printing, to track if printing indented lines after a list entry of which depth, would be a nice improvement.

[zannabianca1997]

I am having this issue too. It's more a problem of minimad, I am going to open a PR there.
I fear it will be difficult to add state to the parser, as the whole parsing is only line-based