Docs-fix: Pistonball #1138

Job	Run time
agilerl-tutorial-test (3.9, AgileRL)	14m 8s
agilerl-tutorial-test (3.10, AgileRL)	14m 49s
agilerl-tutorial-test (3.11, AgileRL)	17m 15s
tutorial-test (3.8, Tianshou)	3m 26s
tutorial-test (3.8, CustomEnvironment)	1m 16s
tutorial-test (3.8, CleanRL)	5m 53s
tutorial-test (3.8, SB3/kaz)	4m 18s
tutorial-test (3.8, SB3/waterworld)	8m 26s
tutorial-test (3.8, SB3/connect_four)	2m 7s
tutorial-test (3.8, SB3/test)	2m 1s
tutorial-test (3.9, Tianshou)	4m 6s
tutorial-test (3.9, CustomEnvironment)	26s
tutorial-test (3.9, CleanRL)	5m 31s
tutorial-test (3.9, SB3/kaz)	4m 54s
tutorial-test (3.9, SB3/waterworld)	7m 56s
tutorial-test (3.9, SB3/connect_four)	2m 9s
tutorial-test (3.9, SB3/test)	1m 59s
tutorial-test (3.10, Tianshou)	3m 37s
tutorial-test (3.10, CustomEnvironment)	50s
tutorial-test (3.10, CleanRL)	7m 14s
tutorial-test (3.10, SB3/kaz)	4m 54s
tutorial-test (3.10, SB3/waterworld)	7m 48s
tutorial-test (3.10, SB3/connect_four)	3m 20s
tutorial-test (3.10, SB3/test)	2m 22s
tutorial-test (3.11, Tianshou)	3m 35s
tutorial-test (3.11, CustomEnvironment)	38s
tutorial-test (3.11, CleanRL)	7m 26s
tutorial-test (3.11, SB3/kaz)	4m 48s
tutorial-test (3.11, SB3/waterworld)	8m 0s
tutorial-test (3.11, SB3/connect_four)	1m 59s
tutorial-test (3.11, SB3/test)	2m 9s
	2h 39m 20s

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