The heading for 'Contributing' is mistakenly part of the code snippet when viewed on WordPress.org here.
It's possible that this is due to how WP processes and converts the readme (not a dev so just a guess) as the lower code doesn't have the same issue. However, the lower code is followed by a paragraph which made me first guess it might be a WP conversion issue. A quick workaround, if that is the case, would be to add a short paragraph or break between the code and heading.
The heading for 'Contributing' is mistakenly part of the code snippet when viewed on WordPress.org here.
It's possible that this is due to how WP processes and converts the readme (not a dev so just a guess) as the lower code doesn't have the same issue. However, the lower code is followed by a paragraph which made me first guess it might be a WP conversion issue. A quick workaround, if that is the case, would be to add a short paragraph or break between the code and heading.