Added examples

Added some examples to try out in the demo

app.py

@@ -263,5 +263,5 @@ pdf_input = gr.inputs.File(label="PDF File")
 values_output = gr.outputs.Textbox(label="Mq. Values")
 total_output = gr.outputs.Textbox(label="Total")
 text_output = gr.outputs.Textbox(label="Ref. Text")
-iface = gr.Interface(fn=ocr_interface, inputs=pdf_input, title="PDF MQ EXTRACTOR", outputs=[values_output, total_output, text_output], preprocess=format_output)
+iface = gr.Interface(fn=ocr_interface, inputs=pdf_input, title="PDF MQ EXTRACTOR", examples=["Example1.pdf", "Example2.pdf"] outputs=[values_output, total_output, text_output], preprocess=format_output)
 iface.launch()