cleanrl/docs/benchmark/ppo_atari_envpool.md

	openrlbenchmark/cleanrl/ppo_atari_envpool ({'tag': ['pr-424']})	openrlbenchmark/cleanrl/ppo_atari ({'tag': ['pr-424']})
Pong-v5	20.45 ± 0.09	20.36 ± 0.20
BeamRider-v5	2501.85 ± 210.52	1915.93 ± 484.58
Breakout-v5	211.24 ± 151.84	414.66 ± 28.09