added chapter map to README

08-closure-deco/clockdeco_demo.py

@@ -0,0 +1,18 @@
+# clockdeco_demo.py
+
+import time
+from clockdeco import clock
+
+@clock
+def snooze(seconds):
+    time.sleep(seconds)
+
+@clock
+def factorial(n):
+    return 1 if n < 2 else n*factorial(n-1)
+
+if __name__=='__main__':
+    print('*' * 40, 'Calling snooze(.123)')
+    snooze(.123)
+    print('*' * 40, 'Calling factorial(6)')
+    print('6! =', factorial(6))