Fix several docstrings #2364

Job	Run time
docs	1m 57s
coverage	1m 43s
benchmarks	1m 29s
examples	2m 50s
pin	2m 29s
pre-commit	55s
test (ubuntu-latest, 3.11)	1m 17s
tutorials_list	5s
test (macos-latest, 3.11)	2m 22s
test (windows-latest, 3.11)	5m 8s
tutorials (tutorials/arm_repertoire.ipynb)	1m 5s
tutorials (tutorials/cma_mae.ipynb)	2m 29s
tutorials (tutorials/features/example.ipynb)	52s
tutorials (tutorials/fooling_mnist.ipynb)	2m 44s
tutorials (tutorials/lsi_mnist.ipynb)	2m 56s
tutorials (tutorials/lunar_lander.ipynb)	2m 10s
tutorials (tutorials/scalable_cma_mae.ipynb)	2m 18s
tutorials (tutorials/tom_cruise_dqd.ipynb)	6m 14s
deploy	0s
	41m 3s

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