Indentation on Introduction Files example

[csabella]

https://dabeaz-course.github.io/practical-python/Notes/01_Introduction/06_Files.html

>>> with open('Data/portfolio.csv', 'rt') as f:
    for line in f:
        print(line, end='')

name,shares,price
"AA",100,32.20
"IBM",50,91.10
...
>>>

[dabeaz]

Fixed!