Markdown in <figure> tag is not rendered properly

[KaiserY]

Version

OS Version: Windows 10
CLI version: 2.3.0
GitBook version: 3.2.2

What is the current behavior?

Here is the particular markdown 😋

And in Gitbook the sytanx highlight is gone 😕

What is the expected behavior?

As a reference, the render in mdBook is good 😄

Links

Actual text: https://github.com/KaiserY/trpl-zh-cn/blob/master/src/ch02-00-guessing-game-tutorial.md
Gitbook.com:https://kaisery.gitbooks.io/trpl-zh-cn/content/ch02-00-guessing-game-tutorial.html
mdBook:https://kaisery.github.io/trpl-zh-cn/ch02-00-guessing-game-tutorial.html