Inconsistent column name for target variable

[IoanaSil14]

In README it is mentioned to rename the target variable column to 'label' in order to perform the bias audit. However, in Group() the name for this column is expected to be 'label_value' (as is it mentioned in the documentation: https://dssg.github.io/aequitas/examples/compas_demo.html)

[Deepakchowdavarapu]

I can work on this , Please Assign it to me