Uploaded new model

## Changes
- Updated model from line level masking to document level masking
- Trained with 768 images from BN_HTR dataset

model.pth

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
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+oid sha256:45bfc6c8125c76b0974063674b86ee8d83d7bef63e3564a04a962abee457df05
 size 31132438