Incorrect expected output in decorator example

[berrylvz]

In Chinese/14_higher_order_functions.md (around line 185), the expected output of the decorator example appears to be incorrect.

Current code:

@split_string_decorator
@uppercase_decorator     # 在此情况下，装饰器的顺序很重要 - .upper()函数不适用于列表
def greeting():
    return 'Welcome to Python'
print(greeting())   # WELCOME TO PYTHON

Since split_string_decorator calls split() on the uppercase string, greeting() returns a list rather than a string.

The expected output should be:

print(greeting())   # ['WELCOME', 'TO', 'PYTHON']