DOC: Clarify `cv` parameter description in `GridSearchCV`#12495

Merged

amueller merged 7 commits intoscikit-learn:masterfrom

QBatista:fix_doc_cv

Nov 12, 2018

Commits on Oct 31, 2018

Commits on Nov 3, 2018

Move the new example to `cross_validation.rst` and shorten the description the `cv` parameter.
QBatista
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Rewrite the `cv` parameter description for other CV and cross validation functions.
QBatista
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Rename variable to avoid overwriting
QBatista
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Commits on Nov 8, 2018

Rewrite remaining `cv` parameter descriptions
QBatista
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Commits on Nov 9, 2018

Change ":term:`CV splitter <CV splitter>`" to ":term:`CV splitter`"
QBatista
committed