underline and bold

[Erimus-Koo]

Bug Report

Steps to reproduce

「<u>**中文内容**</u>」
「<u>**中文**内容</u>」
「<u>中**文内**容</u>」
「<u>中文**内容**</u>」
「**<u>中文内容</u>**」
「**<u>中文</u>内容**」
「**中<u>文内</u>容**」
「**中文<u>内容</u>**」

What is current behaviour

What is the expected behaviour

「<u>**中文内容**</u>」 display same style to 「**<u>中文内容</u>**」

Other relevant information

• [x] Bug does still occur when all/other plugins are disabled?

• Your OS:

• Node.js version:

• npm/yarn version:

• Browser version:

• Docsify version: latest (//unpkg.com/docsify/lib/docsify.min.js)

• Docsify plugins:

Please create a reproducible sandbox

HERE IS A SAMPLE 👇👇👇

Mention the docsify version in which this bug was not present (if any)