Add app.py with greet function and Gradio interface

app.py

@@ -0,0 +1,14 @@
+from transformers import pipeline
+import gradio as gr
+
+# transcriber = pipeline("automatic-speech-recognition", model="ID2223/hackernews_upvotes_predictor")
+
+def greet(name):
+    return "Hello " + name + "!!"
+
+with gr.Blocks(
+    theme=gr.themes.Default(font=[gr.themes.GoogleFont("IBM Plex Mono"), "Arial", "sans-serif"])
+    ) as demo:
+    gr.Interface(fn=greet, inputs="text", outputs="text")
+
+demo.launch()