I’m not sure if this is the best place to report it.
But I think that I found an issue with JSON validation in Markdown files. The specific JSON code block seems to cause an issue with the validator, and in consequence, the rest of the Markdown file is marked an invalid, which seems like an unexpected behavior.
The issue is visible in blame view and when referring to the source code in issues and pull requests.
The very example of this behavior that I found:
Direct link to the blame of the problematic file: