DOC: Fix pivot_table and index.name descriptions (#61455) #44771

Job	Run time
Test Conda Forge Recipe - Python 3.10	2m 11s
Test Conda Forge Recipe - Python 3.11	2m 10s
Install Extras - spss	4m 6s
Install Extras - mysql	4m 2s
Install Extras - plot	4m 7s
Install Extras - test	3m 51s
Install Extras - compression	4m 9s
Install Extras - feather	4m 4s
Install Extras - aws	4m 4s
Install Extras - all	4m 42s
Install Extras - excel	4m 6s
Install Extras - html	4m 4s
Install Extras - fss	4m 10s
Install Extras - postgresql	4m 9s
Install Extras - gcp	4m 10s
Install Extras - sql-other	3m 59s
Install Extras - clipboard	4m 5s
Install Extras - pyarrow	4m 7s
Install Extras - hdf5	3m 58s
Install Extras - performance	4m 2s
Install Extras - xml	3m 57s
Install Extras - computation	4m 11s
Install Extras - parquet	4m 3s
Install Extras - output-formatting	3m 59s
	1h 34m 26s

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