Update README.md

Add ONNX export of crnn_pashtoOCR.pt (for browser inference)

Update README.md

Rename crnn_handwriting.pt to crnn_pashtoOCR.pt

Qwen2-VL QLoRA handwriting adapter

stage 2 (handwriting), KPTI test CER=0.0563

stage 1 (printed), val CER=0.0368

stage 1 (printed), val CER=0.0408

CRNN+CTC, val CER=0.0407

initial commit