Add redis to requirements in README

[MartinThoma]

Redis is required by tf_rl/controller/human_controller.py

[imcomking]

sudo apt-get install redis-server sudo service redis-server start (or sudo service redis-server restart)

[imcomking]

if you want simulate HumanController, you should add some codes in human_controller.py first.

import sys, os
sys.path.append(os.path.abspath('../..'))

python human_controller.py and push some keyboard actions (i.e w,a,s,d) then run the ipython notebook "karpathy_game.ipynb"

[lsqshr]

+1

Also due to the absolute importing, it now only works if you copy the human_controller.py to the project root