Update VLESS Reverse Proxy

https://github.com/XTLS/Xray-core/pull/6110#issuecomment-4440102566
https://github.com/XTLS/Xray-core/pull/6110#issuecomment-4440168387

docs/en/config/features/index.md

@@ -7,3 +7,4 @@ Xray has the following features:
 - [Browser Dialer](browser_dialer.md)
 - [Environment Variables](env.md)
 - [Multiple File Configuration](multiple.md)
+- [Reverse Proxy / NAT Traversal](/en/document/level-2/vless_reverse.md)

docs/en/config/reverse.md

@@ -1,9 +1,10 @@
-# Reverse Proxy
+# Legacy Reverse Proxy
 
 ::: danger
-This feature has been deprecated. Please use the VLESS reverse proxy.
+The legacy reverse proxy has been deprecated. Please use the [VLESS reverse proxy](/en/document/level-2/vless_reverse.md).
 :::
 
+:::: details Legacy reverse proxy documentation (deprecated)
 A reverse proxy can forward traffic from the server side to the client side, effectively performing reverse traffic forwarding.
 
 ::: tip
@@ -262,3 +263,5 @@ Routing Configuration:
   ]
 }
 ```
+
+::::