add chroma cllection name

app.py

@@ -130,7 +130,7 @@ class ChromaManager:
 intention_client = OpenAI(api_key=yi_token, base_url=API_BASE)  
 embedding_generator = EmbeddingGenerator(model_name=model_name, token=hf_token, intention_client=intention_client)  
 embedding_function = MyEmbeddingFunction(embedding_generator=embedding_generator)  
-chroma_manager = ChromaManager(embedding_function=embedding_function)  
+chroma_manager = ChromaManager(collection_name="Tonic-instruct" , embedding_function=embedding_function)  
   
 def respond(  
     message,