Update README_EN.md

Author: kitUIN

README_EN.md

@@ -45,6 +45,8 @@ than it will transfer to image
 
 **If you use local pictures, only you can see them**
 
+support display GIF
+
 ![quick](https://chatimage.kituin.fun/img/quick.png)
 
 (image from [甘城なつき](https://www.pixiv.net/users/3036679))
@@ -83,4 +85,4 @@ Send CICode with url (use default display name)
 
 - [X] Paste the picture directly in the chat field and automatically convert it to `CICode`
 - [X] manual input `CICode`
-- [x] send `CICode` with command
+- [x] send `CICode` with command