Book added

Added PDF for the book

Author: nimit2801

README.md

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 # Python 50 Exercise :fire:
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+**[PDF for the book](https://github.com/HackClubNUV/Python-50-Exercises/files/6885619/dokumen.pub_python-workout-50-essential-exercises-1nbsped-1617295507-9781617295508.pdf)**
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 1) A username is accepted and the user is asked to guess a number. The user will get 10 guesses. With every guess the interpreter will tell whether the guess is higher than or lower than the expected value.
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 27) A password will be generated with the following Program.
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 `python 3.7` or above.
 
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