From dce0bb618914376483391f252ca0486e3e9b9faa Mon Sep 17 00:00:00 2001
From: Yoshifumi Kawai <46207+neuecc@users.noreply.github.com>
Date: Wed, 4 Sep 2024 08:47:47 +0900
Subject: [PATCH] Update README.md

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 8170ac4..761ccca 100644
--- a/README.md
+++ b/README.md
@@ -58,7 +58,7 @@ Observable<CollectionResetEvent<T>> IObservableCollection<T>.ObserveReset()
 Observable<CollectionResetEvent<T>> IObservableCollection<T>.ObserveReset()
 Observable<Unit> IObservableCollection<T>.ObserveClear<T>()
 Observable<(int Index, int Count)> IObservableCollection<T>.ObserveReverse<T>()
-Observable<(int Index, int Count, IComparer<T> Comparer)> IObservableCollection<T>.ObserveSort<T>()
+Observable<(int Index, int Count, IComparer<T>? Comparer)> IObservableCollection<T>.ObserveSort<T>()
 Observable<int> IObservableCollection<T>.ObserveCountChanged<T>()
 ```