Update app.py

app.py

@@ -13,7 +13,7 @@ tab_img = gr.Interface(
     outputs=output_image,
     title="Real-ESRGAN Pytorch",
     description="Gradio UI for Real-ESRGAN Pytorch version. To use it, simply upload your image, or click one of examples and choose the model. Read more at the links below. Please click submit only once <br>Credits: [Nick088](https://linktr.ee/Nick088), Xinntao, Tencent, Geeve George, ai-forever, daroche <br><p style='text-align: center'><a href='https://arxiv.org/abs/2107.10833'>Real-ESRGAN: Training Real-World Blind Super-Resolution with Pure Synthetic Data</a> | <a href='https://github.com/ai-forever/Real-ESRGAN'>Github Repo</a></p>",
-    examples=["./test 1900.jpg", x4]
+    examples=["./test 1900.jpg", "x4"]
 )
 
 input_video = gr.Video(label='Input Video')
@@ -27,7 +27,7 @@ tab_vid = gr.Interface(
     outputs=output_video,
     title="Real-ESRGAN Pytorch",
     description="Gradio UI for Real-ESRGAN Pytorch version. To use it, simply upload your video, or click one of examples and choose the model. Read more at the links below. Please click submit only once <br>Credits: [Nick088](https://linktr.ee/Nick088), Xinntao, Tencent, Geeve George, ai-forever, daroche <br><p style='text-align: center'><a href='https://arxiv.org/abs/2107.10833'>Real-ESRGAN: Training Real-World Blind Super-Resolution with Pure Synthetic Data</a> | <a href='https://github.com/ai-forever/Real-ESRGAN'>Github Repo</a></p>",
-    examples=["./1900.mp4", x2]
+    examples=["./1900.mp4", "x2"]
 )
 
 demo = gr.TabbedInterface([tab_img, tab_vid], ["Image", "Video"])