I created a test-repository to display the problem, see
Also: the behaviour of the underscores is not as expected.
Reported it to Jekyll, they told me it might be fixed if Github used a current version of Jekyll. The version used is outdated...
Thanks for the report @JirkaDellOro and thank you for being here, I've taken your feedback and passed it along to the appropriate teams, and will post an update here as soon as I have some news to report. Thanks again for reaching out 😀
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