Update app.py

app.py

@@ -39,7 +39,7 @@ def process_uploaded_dataset(uploaded_file):
     to the Hugging Face dataset repository.
     """
     if not HF_TOKEN:
-        return "Error: HF_TOKEN is not set in this Space's secrets. Cannot upload data."
+        return "Error: HF_TOKEN is not set in this Space's secrets. Cannot upload data. Please add the secret in the repository settings."
 
     if uploaded_file is None:
         return "Error: No file was uploaded. Please select a .jsonl file."
@@ -102,6 +102,9 @@ def process_uploaded_dataset(uploaded_file):
 
 # --- Gradio User Interface ---
 with gr.Blocks(theme=gr.themes.Soft(primary_hue="blue")) as demo:
+    # --- FIX IS HERE ---
+    # The literal curly braces { and } in the JSON example have been doubled to {{ and }}
+    # to escape them within the f-string.
     gr.Markdown(f"""
     #  CONTRIBUTOR SPACE for Open Sam Chat
     ## Add Data to `{DATASET_REPO}`
@@ -116,10 +119,11 @@ with gr.Blocks(theme=gr.themes.Soft(primary_hue="blue")) as demo:
     
     **Example of a valid `.jsonl` file:**
     ```json
-    {"prompt": "What is the capital of France?", "response": "The capital of France is Paris."}
-    {"prompt": "Explain the concept of photosynthesis in simple terms.", "response": "Photosynthesis is the process plants use to turn sunlight, water, and air into food for themselves."}
+    {{"prompt": "What is the capital of France?", "response": "The capital of France is Paris."}}
+    {{"prompt": "Explain the concept of photosynthesis in simple terms.", "response": "Photosynthesis is the process plants use to turn sunlight, water, and air into food for themselves."}}
     ```
     """)
+    # --- END OF FIX ---
     
     with gr.Row():
         file_uploader = gr.File(