documentation: Updating pattern data

[mfranzke]

I am using Pattern Lab Node v5.16.2 on Mac, with Node v14.19.3, using a Vanilla Edition.

Expected Behavior

Finding the current pattern partial pattern parameters documentation on https://patternlab.io/docs/using-pattern-parameters/

Actual Behavior

https://patternlab.io/docs/using-pattern-parameters/ still includes the Mustache description of pattern parameters, and should get updated by https://handlebarsjs.com/guide/partials.html#partial-parameters