Update app.py

app.py

@@ -2,7 +2,10 @@ from datasets import load_dataset
 import gradio as gr
 
 def preview_data():
-    dataset = load_dataset("gfather/publications")
+    dataset = load_dataset(
+    "json",
+    data_files="https://huggingface.co/gfather/publications/resolve/main/publication_1.json"
+    )
     df = dataset["train"].to_pandas()
     return df.head().to_string()