Updated README and Week 8 coming together

week8_wip/hello.py

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+import modal
+from modal import App, Volume, Image
+
+# Setup
+
+app = modal.App("hello")
+image = Image.debian_slim().pip_install("requests")
+gpu = "T4"
+
+# Hello!
+
+@app.function(image=image)
+def hello() -> str:
+    import requests
+    
+    response = requests.get('https://ipinfo.io/json')
+    data = response.json()
+    city, region, country = data['city'], data['region'], data['country']
+    return f"Hello from {city}, {region}, {country}!!"