Update HISTORY.rst

HISTORY.rst

@@ -5,7 +5,7 @@ History
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 * Allow to use of `y` and `groups` arguments in cross validator `get_n_splits` and `split`
-  to enable more split methods for :class:`MapieRegressor` (e.g. :class:`GroupKFold`, stratified continuous split).
+  methods to enable more cv-split methods for :class:`MapieRegressor` (e.g. :class:`GroupKFold`, stratified continuous split).
 * Allow to use more split methods for MapieRegressor (ShuffleSplit, PredefinedSplit).
 * Integrate ConformityScore into MapieTimeSeriesRegressor.
 * Add (extend) the optimal estimation strategy for the bounds of the prediction intervals for regression via ConformityScore.