Fix broken link to Karma website

[mattalxndr]

No description provided.

[google-cla]

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[mattalxndr]

Hi Robot, I already signed one using another email address (either matt@alxndr.me or mattalexx@gmail.com, I can't remember), and the form just reminded me of that fact when I tried to resubmit.

Anyway, it's not really worth paperwork in thie case, just a heads up. Thanks for allowing me to use the package, have a good day 👍