[Tagging] Link to stream of webcam

[dktue]

Hi,

I'd like to tag the link to the (current) JPEG-image of a webcam, but 
the wiki doesn't state how to do so [1].

Any suggestions how to tag this?

Cheers,
dktue

[1] https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dsurveillance