Fix one more remarkup line wrapping issue

Summary:
Ran into this while fixing T11098#179088.

The "Transaction Type" details in the conduit autogenerated documentation for *.edit endpoints still wraps incorrectly.

Test Plan: Purged remarkup cache, reloaded page, got full-width text.

Reviewers: avivey, chad

Reviewed By: chad

Differential Revision: https://secure.phabricator.com/D16065