Merge pull request #68 from jcwleo/master

Add DQN with PER

Merge pull request #61 from fredcallaway/master

add comment on use of categorical_crossentropy

Update README.md

Delete README-kr.md

fix error q-learning learning function

Merge pull request #50 from Hyeokreal/master

delete pong a3c from readme

delete ppt

indent fix

comments for reinforce

policy iteration, value iteration env clean

delete render in deepsarsa and reinforce

epsilon edit