Update README.md

lqzhgood · web-flow · commit c864c4de9e5c · 2023-06-29T09:09:54.000+08:00
diff --git a/README.md b/README.md
@@ -4,7 +4,9 @@
 
 # wechat-need-web
 
-This is a Chrome / Edge extension, can allow the use of WeChat via webpage access
+This is a Chrome / Edge extension, can allow the use of WeChat via webpage access.
+
+Comply with `Manifest version 3` specifications.
 
 ## Wiki
 
