Fix examples with updated pruning naming convention (#33144)
Summary:
Fix in docs requested by vainaijr.
Closes issue https://github.com/pytorch/pytorch/issues/32991
Pull Request resolved: https://github.com/pytorch/pytorch/pull/33144
Differential Revision: D20104640
Pulled By: albanD
fbshipit-source-id: 9b1be2c1cbde1964967967a9581bb6932a305d81
