WIP: Try enabling sup/sub in docusaurus

Description

Try enabling sup/sub in docusaurus

See https://docusaurus.io/docs/en/site-config

Examples

Checklist

• the MR description has been reviewed
• this MR contains text changes and they have been reviewed OR there are no texts changes
• this MR contains GUI/CLI changes and they have been reviewed OR there are no GUI/CLI changes
• this MR contains API changes and they have been reviewed OR there are no API changes