Typing error identified in one of the spec examples

[guiseek]

Describe the issue

The Bitcrusher class is ending with braces and parentheses, like this: }), instead of just braces }.
Probably just a typo.

Where Is It
In example 16, line 67, use this link to make it easier to find:
https://webaudio.github.io/web-audio-api/#AudioWorklet-Examples

Additional Information

It should be enough to validate the problem