Update app.py

app.py

@@ -6,12 +6,13 @@ import nest_asyncio
 from llama_index import ServiceContext, LLMPredictor, PromptHelper
 from llama_index.text_splitter import TokenTextSplitter
 from llama_index.node_parser import SimpleNodeParser
-from langchain.embeddings import HuggingFaceEmbeddings
+from langchain.embeddings import HuggingFaceEmbeddings, HuggingFaceInstructEmbeddings
 from llama_index import SimpleDirectoryReader, VectorStoreIndex
 from gradio import Interface
 nest_asyncio.apply()
 
-embed_model = HuggingFaceEmbeddings()
+embed_model = HuggingFaceInstructEmbeddings(model_name="hkunlp/instructor-xl",
+                                                      model_kwargs={"device": "cpu"})
 """
 node_parser = SimpleNodeParser.from_defaults(text_splitter=TokenTextSplitter(chunk_size=1024, chunk_overlap=20))
 prompt_helper = PromptHelper(