...
Other languages are "html", "xml", "javascript", "php", "python", "ruby". Remember to use the ":syntax: true" atribute in the metadata so that syntax highlighting works.
Icons
To use font awesome icons in your webpage include the :icons: font
in the metadata of the page.
Then you can reference an icon using the name of the icon in the asciidoc icon macro, like so:
.icon:users[]
for a list of icons see https://fontawesome.com/icons?d=gallery
For instance, to include the https://fontawesome.com/icons/adjust?style=solid adjust icon, use the construct
.icon:adjust[]
Other enhancements
Please discuss any issue you may have with asciidoc and the website in general in the dev mailing list.
...