Documentation of iwxxm:WAFSJetStreamWindSymbol/iwxxm:windSpeed has left out the possible use of knot as unit of measure

[blchoy]

Describe the bug
Documentation of iwxxm:WAFSJetStreamWindSymbol/iwxxm:windSpeed has left out the possible use of knots as unit of measure.

To Reproduce
N/A.

Expected behavior
Current it said 'Horizontal wind speed at the indicated position. Wind speeds shall be provided in unit of measurer "m/s" (meters per second)'. It should be revised to 'Horizontal wind speed at the indicated position. Wind speeds shall be provided in either two units of measures, 'm/s" or "[kn_i]" (knot)'.

Screenshots
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Desktop (please complete the following information):
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Additional context
N/A.