Shorten deprecation warning

Author: bruno-f-cruz

harp/reader.py

@@ -464,9 +464,7 @@ def payload_parser(df: DataFrame):
     return RegisterReader(register, reader)
 
 
-@deprecated(
-    "This function is deprecated. Use DeviceReader.from_file, DeviceReader.from_url, DeviceReader.from_str, and DeviceReader.from_model instead."
-)
+@deprecated("This function is deprecated. Use DeviceReader.from_* methods instead.")
 def create_reader(
     device: Union[str, PathLike, Model],
     include_common_registers: bool = True,