sampleRate documentation issue

[kiranbayram]

As you can see with the link below, in documentation sampleRate is explained as percentage which causes some users to use values between 0-100 but expected value is actually between 0-1. Could you please update the documentation to sth like:

sampleRate:
 rate of the sampling (expected value between 0.0 and 1.0)

https://github.com/DataDog/java-dogstatsd-client/blob/2c972e6f011e652446a96f85a0cd1d04dcd1a26d/src/main/java/com/timgroup/statsd/StatsDClient.java#L62