clarifying units as Hz

Author: lewispg228

src/sfeQwiicBuzzer.h

@@ -56,14 +56,14 @@ class sfeQwiicBuzzer
         /// causing buzzing by using the physical TRIGGER pin.
         /// To start buzzing (via Qwiic) with your desired configuration, use this
         /// function, then call setBuzzerActiveReg().
-        /// @param toneFrequency Frequency of buzzer tone
+        /// @param toneFrequency Frequency in Hz of buzzer tone
         /// @param duration Duration in milliseconds
         /// @param volume Volume (4 settings; 0=off, 1=quiet... 4=loudest)
         /// @return 0 for succuss, negative for errors, positive for warnings
         sfeTkError_t configureBuzzer(const uint16_t toneFrequency, const uint16_t duration, const uint8_t volume);
 
         /// @brief Configures the Qwiic Buzzer with default values
-        /// @param toneFrequency Frequency of buzzer tone
+        /// @param toneFrequency Frequency in Hz of buzzer tone
         /// @param duration Duration in milliseconds
         /// @param volume Volume (4 settings; 0=off, 1=quiet... 4=loudest)
         /// @return 0 for succuss, negative for errors, positive for warnings