DOC changed some typo of _shrunk_covariance.ledoit_wolf_shrinkage (#22798)
DOC changed some typo of _shrunk_covariance.ledoit_wolf_shrinkage (#22798)

* Changed from 3rd to 1st person the 1st word and remote blanck space.

* Add two periods in the content
vinayak-mehta/scikit-learn,scikit-learn/scikit-learn,manhhomienbienthuy/scikit-learn,betatim/scikit-learn,betatim/scikit-learn,manhhomienbienthuy/scikit-learn,TomDLT/scikit-learn,lesteve/scikit-learn,anntzer/scikit-learn,espg/scikit-learn,vinayak-mehta/scikit-learn,AlexandreAbraham/scikit-learn,scikit-learn/scikit-learn,betatim/scikit-learn,AlexandreAbraham/scikit-learn,TomDLT/scikit-learn,espg/scikit-learn,anntzer/scikit-learn,vinayak-mehta/scikit-learn,ivannz/scikit-learn,AlexandreAbraham/scikit-learn,vinayak-mehta/scikit-learn,AlexandreAbraham/scikit-learn,espg/scikit-learn,ivannz/scikit-learn,saiwing-yeung/scikit-learn,anntzer/scikit-learn,lesteve/scikit-learn,manhhomienbienthuy/scikit-learn,jakirkham/scikit-learn,ivannz/scikit-learn,saiwing-yeung/scikit-learn,betatim/scikit-learn,anntzer/scikit-learn,manhhomienbienthuy/scikit-learn,TomDLT/scikit-learn,scikit-learn/scikit-learn,espg/scikit-learn,saiwing-yeung/scikit-learn,lesteve/scikit-learn,saiwing-yeung/scikit-learn,jakirkham/scikit-learn,lesteve/scikit-learn,TomDLT/scikit-learn,scikit-learn/scikit-learn,jakirkham/scikit-learn,jakirkham/scikit-learn,ivannz/scikit-learn