add changes to requirements

requirements.txt

 nltk==3.7
 numpy==1.23.5
 pandas==1.5.2
+torchvision
+torchaudio
 torch>=1.13.0+cu116
-torchvision>=0.13.0+cu116
-torchaudio>=0.13.0
 tqdm==4.64.1
-python==3.9.*
 evaluate ==0.3.0
 matplotlib==3.5.2
-scikit_lean==1.2.1
+scikit-learn==1.2.1
 transformers==4.26.1