Question display of hyperlink from custom historic module

With v. 2.0.21, when I display this in my historic custom module from my list of notes in collections within module.php:

"1 EVEN World War II\n2 TYPE Global Conflict\n2 DATE FROM 1 SEP 1939 TO 2 SEP 1945\n2 SOUR [Wikipedia]( en.wikipedia.org/wiki/World_War_II )\n2 NOTE Western world's time period for World War II.",

I get under Source the Wikipedia link formatted correctly as a hyperlink

in v.2.1 beta, it is displayed in red color like an unrecognized custom GEDCOM tag and the URL is spelled out and is not a hyperlink.

Is there something I failed to activate in v.2.1 beta?

~doug