Document the use of additional features
Document the use of additional features

jungikim/OpenNMT,OpenNMT/OpenNMT,monsieurzhang/OpenNMT,jsenellart/OpenNMT,jsenellart-systran/OpenNMT,dabbler0/seq2seq-comparison,jsenellart-systran/OpenNMT,jungikim/OpenNMT,da03/OpenNMT,jsenellart-systran/OpenNMT,srush/OpenNMT,monsieurzhang/OpenNMT,OpenNMT/OpenNMT,jsenellart/OpenNMT,harvardnlp/seq2seq-attn,da03/OpenNMT,cservan/OpenNMT_scores_0.2.0,monsieurzhang/OpenNMT,OpenNMT/OpenNMT,dabbler0/seq2seq-comparison,jungikim/OpenNMT,da03/OpenNMT,jsenellart/OpenNMT