Update app.py

app.py

@@ -1,3 +1,18 @@
+# This project uses the BART model from Facebook AI Research (FAIR) available at https://huggingface.co/facebook/bart-large-cnn under the Apache License 2.0.
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
 import fitz  # PyMuPDF
 import gradio as gr
 from transformers import pipeline