Update app.py

app.py

@@ -27,7 +27,8 @@ st.title("llama_index_demo")
 def init_models():
     embed_model = HuggingFaceEmbedding(
         # model_name="/root/model/paraphrase-multilingual-MiniLM-L12-v2"
-        model_name="/root/model/sentence-transformer"
+        # model_name="/root/model/sentence-transformer"
+        model_name="sentence-transformers/paraphrase-multilingual-MiniLM-L12-v2"
     )
     Settings.embed_model = embed_model