diff --git a/README.md b/README.md
index fde6945..305ef02 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,10 @@
 ![version](https://img.shields.io/badge/version-17%2B-3E8B93)
-![platform](https://img.shields.io/static/v1?label=platform&message=osx-intel%20|%20osx-arm%20|%20win-64&color=blue)
+![platform](https://img.shields.io/static/v1?label=platform&message=mac-intel%20|%20mac-arm%20|%20win-64&color=blue)
 [![license](https://img.shields.io/github/license/miyako/4d-plugin-qrencode-v2)](LICENSE)
 ![downloads](https://img.shields.io/github/downloads/miyako/4d-plugin-qrencode-v2/total)
 
+**Note**: for v17 and earlier, move `manifest.json` to `Contents`
+
 # 4d-plugin-qrencode-v2
 QR code generator based on [libqrencode](https://fukuchi.org/works/qrencode/).