add blackjack.py
try
Merge pull request #2 from my-zhang/develop

init project skeleton
Merge pull request #3 from my-zhang/develop

add cli
Readme details

add details to readme.md
fix function details

gameover--score = -1 can't play anymore
deal()-- fix first hand blackjack
double()--fix settlement problem
init project skeleton
add filter for build
dummy cli
add support for pytest as well as cli
add description
add cli
dealer value bug fix

fix dealer value and readme
add local start script
implement fucntions
init test
Merge pull request #4 from my-zhang/develop

demo finished
Merge pull request #5 from my-zhang/develop

demo finished
Merge pull request #6 from Meeball/develop

Develop
implement 'double' and display card detail