add fancy greeting print out

Author: seanchen

main.py

@@ -1,2 +1,11 @@
+# here is the comment
 # my first ever code in Python!
 print('Hello World!')
+
+# ==============================
+# how to use variable?
+
+# define a variable is very simple:
+greeting = 'The fancy greeting!'
+
+print( greeting )