updated title and description

app.py

@@ -147,7 +147,12 @@ def inference(img, aligned, scale, num_flow_steps):
 title = "Posterior-Mean Rectified Flow: Towards Minimum MSE Photo-Realistic Image Restoration"
 
 description = r"""
-Gradio demo for Posterior-Mean Rectified Flow (PMRF). Please refer to our project's page: https://pmrf-ml.github.io/.
+Gradio demo for the blind face image restoration version of Posterior-Mean Rectified Flow (PMRF). Please refer to our project's page: https://pmrf-ml.github.io/.
+
+You may use this demo to enhance the quality of any image which contains faces.
+
+1. If your input image has only one face and it is aligned, please mark "Yes" to the answer below. 
+2. Otherwise, your image may contain any number of faces (>=1), and the quality of each face will be enhanced separately.
 """
 
 css = r"""