Removes call to fill in user survey from readme.
-### User Survey
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-> We love feedback! Please give us < 5 minutes of your time so we can get to know our users better.
->
-> Help us shape knurling by filling out [this short survey](https://forms.office.com/r/aMfHG79N9K).
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# `defmt`
`defmt` ("de format", short for "deferred formatting") is a highly efficient logging framework that targets resource-constrained devices, like microcontrollers.
