feat: Returns an object with information about the invite code's group (#1562)

* feat: Returns an object with information about the invite code's group

* refactor: more information in metadata group

README.md

@@ -777,6 +777,11 @@ Of course, replace ``` xyz ``` with an actual ID.
     console.log("joined to: " + response)
     ```
     Of course, replace ``` xxx ``` with invitation code.
+- To get info group by invite code
+    ```ts
+    const response = await sock.groupGetInviteInfo("xxx")
+    console.log("group information: " + response)
+    ```
 
 
 - To join the group using groupInviteMessage