Update infrerence with 4 gram

Fix initialize model in how to use

Update How to use section

Update WER chart ver 2

Update WER comparison chart

Modify ethical considerations

Update color's model name for Model Card

Update name, WER graph, explore section for Model Card

Upload safety, privacy, explainability and bias.md

Update metadata UI

Upload model, 4-gram language model and lexicon (#2)

Upload Model Card (#1)

initial commit