There may be other unforeseen breakage primarily in the handbook portion of the wiki.
The Table Of Contents section of each "PC-BSD® Users Handbook" page may be the best workaround.
The Warden is available for PC-BSD in the PBI format, as well as a FreeBSD port. Use Software Manager to install the PBI on a PC-BSD system. Figure X-XX shows a search for warden in the Software Browser:
The installation will create an icon on your desktop which you can use to launch The Warden.
To install The Warden on a FreeBSD system, use this command as the superuser:
# pkg_add -r warden
To start The Warden on a FreeBSD system, type warden at the command line.