diff --git a/README.md b/README.md
index afd790324ad9..16c119eed751 100644
--- a/README.md
+++ b/README.md
@@ -195,3 +195,9 @@ Privacy information can be found at https://privacy.microsoft.com/en-us/
 
 Microsoft and any contributors reserve all other rights, whether under their respective copyrights, patents,
 or trademarks, whether by implication, estoppel or otherwise.
+
+---
+
+## Learning Notes
+
+- 2025/07/11: GitHubのフォークとブランチについて学習中