Display Membership type description on contribution page?
If you did this as a Price Set you would be able to have some info in the post-field-help, and you can set the 'label' to be different to the membership type if you want eg



and actually the Price Options do have a pre/post help options but they show inline, presumably some minor theming could address that



Currently at https://dmaster.demo.civicrm.org/civicrm/admin/price/field?reset=1&amp;action=browse&amp;sid=10&amp;new=1 but will be flushed within 24 hours