Update requirements.txt

requirements.txt

-pandas
+torch
+transformers
+sentencepiece
+pandas 
+scikit-learn
 matplotlib
 seaborn
-beautifulsoup4
-lxml
-Unidecode
-Unidecode==1.2.0
-Keras==2.4.3
-Keras-Preprocessing==1.1.2
-sentence-transformers==0.4.1.2
-transformers==4.3.2
-torch==1.7.1
-torchvision==0.8.2
-tokenizers==0.10.1
-regex==2018.1.10
-tensorflow==2.2.0
-gensim==3.8.1
-spacy
+
\ No newline at end of file