Sorry for the inconvenience.  Known Navigation header breakage, its being "rebuilt" but forward nav should be ok now.
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.

Translations:PBI Manager/9.2/122/en

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Table 7.4c: pbi_browser Options [tables 1]
Switch Description
-c category displays a list of PBIs in the specified category
-s search search for PBIs containing the specified string in the name, description, or keywords
--listcats list the available categories
--viewall list all available PBIs

Cite error: <ref> tags exist for a group named "tables", but no corresponding <references group="tables"/> tag was found
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