Add hello example

.gitignore

@@ -0,0 +1 @@
+venv

README.md

@@ -12,4 +12,11 @@ license: apache-2.0
 
 Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
 
-Hello world
+Hello world
+
+# Local dev
+python3 -m venv venv
+source venv/bin/activate
+(venv) $ pip install -r requirements.txt
+(venv) $ gradio app.y
+Go to http://127.0.0.1:7860/

app.py

@@ -0,0 +1,9 @@
+import gradio as gr
+
+def greet(name):
+    return "Hello " + name + "!"
+
+demo = gr.Interface(fn=greet, inputs="text", outputs="text")
+    
+if __name__ == "__main__":
+    demo.launch()   

requirements.txt

@@ -0,0 +1 @@
+gradio