Falsy rendering code block in a code block

[AmayaKuro]

Description

When rendering a code block with language, it will ignore (```) that has no character between them.
Ex:

Markdown:

Display:

We can see that (```)markdown will catch nearest (```) but ignore (```)python since nothing is in between them.

---

Now for code block which has language but does has character in between them:

Markdown:

Display:

If it has only a character between (```)s , it will still group everything although the second (```) is mean for other code block

Ideas

Like other markdown renderer (e.g. the one used by Github and VSCode), a code block should only catch standalone (```), instead of the next (```) even if they suppose to be used by other block.

[quantizor]

The second set of ``` terminates the prior, you need to escape the inside ones. Thinking about if there's a good way to handle this. When there is a language specified it makes it easier since you know for sure that it's basically a new "opening" but without a language it's ambiguous.