Update app.py

app.py

@@ -39,8 +39,8 @@ def create_qa_system():
             raise ValueError("📚 No study materials found")
             
         text_splitter = CharacterTextSplitter(
-            chunk_size=500,
-            chunk_overlap=100,
+            chunk_size=1000,
+            chunk_overlap=200,
             separator="\n\n"
         )
         texts = text_splitter.split_documents(documents)
@@ -75,7 +75,7 @@ def create_qa_system():
 
         return RetrievalQA.from_llm(
             llm=HuggingFacePipeline(pipeline=pipe),
-            retriever=db.as_retriever(search_kwargs={"k": 2}),
+            retriever=db.as_retriever(search_kwargs={"k": 3}),
             return_source_documents=True
         )
     except Exception as e: