Update app.py

app.py

@@ -1,7 +1,7 @@
 import gradio as gr
 from transformers import pipeline
 from transformers.utils import logging
-from llama__index.embeddings.huggingface import HuggingFaceEmbedding
+from llama_index.embeddings.huggingface import HuggingFaceEmbedding
 import torch
 from llama_index.core import VectorStoreIndex
 from llama_index.core import Document