docs: now need go1.22 to build

README.md

@@ -3,6 +3,12 @@
 ### 防止插件上游进行激进的改动，导致一些问题的出现，备份并按需同步可以确保编译时插件始终可用
 
 ```shell
+# 移除 openwrt feeds 自带的核心包
 rm -rf feeds/packages/net/{xray-core,v2ray-core,v2ray-geodata,sing-box}
 git clone https://github.com/sbwml/openwrt_helloworld package/helloworld
+
+# 更新 golang 1.22 版本
+rm -rf feeds/packages/lang/golang
+git clone https://github.com/sbwml/packages_lang_golang -b 22.x feeds/packages/lang/golang
 ```
+