Code correction for run_rl.py

[billh0420]

Lines 37-40 of run_rl.py are:

`

        agents = [agent]

        for _ in range(env.num_players):

                agents.append(RandomAgent(num_actions=env.num_actions))

         env.set_agents(agents)

`

There is an extra randomAgent being added.

A correction could be:

`

        agents = [agent]

        for _ in range(1, env.num_players):

                agents.append(RandomAgent(num_actions=env.num_actions))

        env.set_agents(agents)

`

[Daochen Zha]

Thanks for letting us know! It is fixed.