Docusaurus: Highlighting is not really working

[muuvmuuv]

🐛 Bug Report

Every code block with a language class do not render the language right becuase there is a space between them. Here is a image:

Have you read the Contributing Guidelines on issues?

yes

To Reproduce

1. clean install
2. add a builder.code(npm install --save-dev, "bash");

Expected behavior

It should render the class like language-bash not language- bash (note the space).

(Write what you thought would happen.)

Actual Behavior

see screenshot above

(Write what happened. Add screenshots, if applicable.)

Reproducible Demo

https://github.com/unibeautify/unibeautify

(Paste the link to an example repo, including a siteConfig.js, and exact instructions to reproduce the issue.)

[yangshun]

@endiliey I think it's caused by https://github.com/facebook/Docusaurus/blob/master/lib/core/renderMarkdown.js#L27 having an extra space.

[endiliey]

Great catch. Will send a fix asap 😁