changed according to spaces

app.py

@@ -36,10 +36,10 @@ def init_resources():
             embedding_model_name = embedding_model_name or config.get("embedding_model", "sentence-transformers/all-MiniLM-L6-v2")
             system_prompt = system_prompt or config.get("system_prompt", "You are a helpful assistant.")
         else:
-            raise ValueError("Please set SAMBANOVA_API_KEY and WEBSITE environment variables or provide config.yaml")
+            raise ValueError("Please set SAMBANOVA_API_KEY and WEBSITE as secrets in your Hugging Face Space settings, or provide config.yaml for local development")
 
     if not llm_api_key or not website:
-        raise ValueError("SAMBANOVA_API_KEY and WEBSITE are required")
+        raise ValueError("SAMBANOVA_API_KEY and WEBSITE are required. Set them as secrets in Hugging Face Space settings.")
 
     embed_model = HuggingFaceEmbeddings(model_name=embedding_model_name)
     corpus = build_rag_corpus({"embedding_model": embedding_model_name}, embed_model, website)