Update README.md

Update README.md

updated numbers for no_PC WERs based on conversion bug

Fixed sampling rate typo

Updated model card with information about Hybrid training

Updated README with Riva information

Changes to references and Riva deployment section

Updated readme with FastConformer Hybrid De relevant information and results (#3)

Added the model card template (#2)

uploaded stt_de_fastconformer_hybrid_large_pc.nemo (#1)

initial commit