Reverted unnecessary changes in setting descriptions

Author: pjpei

docs/Settings.md

@@ -1714,7 +1714,7 @@ Gyro lulu sample count, in number of samples.
 
 ### gyro_main_lpf_hz
 
-Software based gyro main lowpass filter. Value is Hz
+Software based gyro main lowpass filter. Value is cutoff frequency (Hz)
 
 | Default | Min | Max |
 | --- | --- | --- |

src/main/fc/settings.yaml

@@ -229,7 +229,7 @@ groups:
         field: gyroLuluSampleCount
         max: 15
       - name: gyro_main_lpf_hz
-        description: "Software based gyro main lowpass filter. Value is Hz"
+        description: "Software based gyro main lowpass filter. Value is cutoff frequency (Hz)"
         default_value: 60
         field: gyro_main_lpf_hz
         min: 0