Suspicious HTML code block in documented Markdown file (EN)

[malliaridis]

In the documented version of the arc42 template (v8.1 EN) I found the following block under # Glossary {#section-glossary}

[...]
-   have an identical understanding of these terms

-   do not use synonyms and homonyms

```{=html}    <----
<!-- -->      <---- this block
```           <----
-   A table with columns \<Term\> and \<Definition\>.

-   Potentially more columns in case you need translations.

See [Glossary](https://docs.arc42.org/section-12/) in the arc42
documentation.

[...]

It looks like the HTML code block should be replaced with some text, but was falsely generated.

In asciidoc it has at this place .Form, docx on the other hand does not include anything there (other formats might also be affected).