Improve precision documentation

custom_components/tuya_local/devices/README.md

@@ -209,14 +209,14 @@ require it. Use this only where needed, and generally only on read-only dps.
 
 *Optional, default None.*
 
-For integer dps that are sensor values, the suggested precision for
-display in Home Assistant can be specified. If unspecified, the Home
-Assistant will use the native precision, which is calculated based on
-the scale of the dp so as to provide distinct values with as few
-decimal places as possible. For example a scale of 3 will result in
-one decimal place by default, (values displayed as x.3, x.7 rather
-than x.33333333 and x.666666) but you could override that to 2 or 0
-with by specifying the precision explicitly.
+The number of decimals which should be used in the sensor's state when
+it's displayed. If unspecified, the Home Assistant will use the native
+precision, which is calculated based on the scale of the dp so as to
+provide distinct values with as few decimal places as possible. For
+example a scale of 3 will result in one decimal place by default,
+(values displayed as x.3, x.7 rather than x.33333333 and x.666666) but
+you could override that to 2 or 0 by specifying the precision
+explicitly.
 
 ### `mapping`