Docs(locales): add chinese locale support (#2772)

docs/zh_CN/premium/userspace-wireguard.md

@@ -0,0 +1,25 @@
+---
+sidebarTitle: "功能: 用户空间 Wireguard"
+sidebarOrder: 7
+---
+
+# 用户空间 Wireguard
+
+由于依赖 gvisor TCP/IP 栈, 用户空间 Wireguard 目前仅在 Premium 内核中可用.
+
+```yaml
+proxies:
+  - name: "wg"
+    type: wireguard
+    server: 127.0.0.1
+    port: 443
+    ip: 172.16.0.2
+    # ipv6: your_ipv6
+    private-key: eCtXsJZ27+4PbhDkHnB923tkUn2Gj59wZw5wFA75MnU=
+    public-key: Cr8hWlKvtDt7nrvf+f0brNQQzabAqrjfBvas9pmowjo=
+    # preshared-key: base64
+    # remote-dns-resolve: true # 远程解析 DNS, 使用 `dns` 字段, 默认为 true
+    # dns: [1.1.1.1, 8.8.8.8]
+    # mtu: 1420
+    udp: true
+```