Update Disclaimer

Author: hata6502

README.md

@@ -94,7 +94,11 @@ Give a ⭐️ if this project helped you!
 
 ## Disclaimer
 
-Please see [DISCLAIMER.md](https://github.com/hata6502/editorjs-layout/blob/main/DISCLAIMER.md).
+The following creations are included in this product:
+
+- [ionic-team/ionicons](https://github.com/ionic-team/ionicons/blob/master/LICENSE)
+
+Please see also [DISCLAIMER.md](https://github.com/hata6502/editorjs-layout/blob/main/DISCLAIMER.md).
 
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