switching to roberta-base-sqaud2-distilled

app.py

@@ -15,7 +15,7 @@ def start_haystack():
     document_store = InMemoryDocumentStore()
     load_and_write_data(document_store)
     retriever = TfidfRetriever(document_store=document_store)
-    reader = FARMReader(model_name_or_path="deepset/tinyroberta-squad2", use_gpu=True)
+    reader = FARMReader(model_name_or_path="deepset/roberta-base-squad2-distilled", use_gpu=True)
     pipeline = ExtractiveQAPipeline(reader, retriever)
     return pipeline