* Refactor main README
* Update Anserini Dependency docs
* Update idf baseline and Kim CNN docs to use Castor-data
* Update remaining READMEs to reference Castor-data
* Change default path from data to Castor-data
* Fix wrong order of embeddings path
+ sm model no external features baseline
+ sm model with IDF weights
+ sm model with IDF weights without removing punctuation --> barely better than df/idf (a la Pytorch).
+ sm model with stemming before computing IDF weights
^ all on the TrecQA dataset
Michael Tu