Update requirements.txt

requirements.txt

@@ -1,6 +1,8 @@
-streamlit==1.31.0
-transformers==4.36.0
-torch==2.1.0
-nltk==3.8.1
-PyPDF2==3.0.1
-sentencepiece==0.1.99
+streamlit==1.31.0
+transformers==4.36.0
+torch==2.1.0
+sentencepiece==0.1.99
+pandas
+numpy
+scikit-learn
+nltk