examples/bert/example_data/README.md

A simple BERT example

1. download data wget https://s3.amazonaws.com/research.metamind.io/wikitext/wikitext-2-v1.zip & unzip wikitext-2-v1.zip
2. run python preprocess.py ./wikitext-2/wiki.train.tokens ./train.lmdb
3. run python preprocess.py ./wikitext-2/wiki.valid.tokens ./valid.lmdb