Update LeanMachineLearning/ForMathlib/MeasureTheory/Order/MeasurableArg.lean

Co-authored-by: Rémy Degenne <remydegenne@gmail.com>

Author: gaetanserre

LeanMachineLearning/ForMathlib/MeasureTheory/Order/MeasurableArg.lean

@@ -10,7 +10,9 @@ public import Mathlib.CategoryTheory.Countable
 public import Mathlib.MeasureTheory.Constructions.Polish.Basic
 public import Mathlib.Order.CompletePartialOrder
 
-/-! # Measurable argmax and argmin functions
+/-! # Argmax and argmin functions on finite sets
+
+We prove in particular that those functions are measurable.
 
 -/