In the Gatsby Docs, the code blocks highlight keywords even though they are plain text within html.
I started noticing this while I was at this particular tutorial page: (https://www.gatsbyjs.org/tutorial/part-three/)

The above image, the words do, of, as should be displayed like normal text, not highlighted.
Thanks @ajayns, this looks like a bug in PrismJS. I've opened an issue over there.
This has been fixed in PrismJS 馃帀. Once the fix is released gatsby-prism-remark will need to be updated here.
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Thanks @ajayns, this looks like a bug in PrismJS. I've opened an issue over there.