max_length in README is not correct?

[caterpillar0111]

Hi, thanks for your great work.
I found a tiny error for your example, when execute the code
ws = ws_driver(text, batch_size=256, max_length=512)
It would show the error message is that
"AssertionError: Sequence length is longer than the maximum sequence length for this model (512 > 510)."
Set the max_length lower than 510 can fix this.
Without that, everything is fine. It's a excellent and convenience tool for extract information from data.

[emfomy]

The example is wrong. Fixed in v0.2.8.