Fix typo

Author: BaptisteCalot

HISTORY.rst

@@ -5,7 +5,7 @@ History
 0.8.x (2024-xx-xx)
 ------------------
 
-* Changed the sign of C_k in the `Kolmogorov-Smirnov` test documentation to resolve issue 369.
+* Change the sign of C_k in the `Kolmogorov-Smirnov` test documentation
 * Building a training set with a fraction between 0 and 1 with `n_samples` attribute when using `split` method from `Subsample` class.
 
 0.8.6 (2024-06-14)