feat(doc): 文档优化

install/agent.config.yaml

@@ -3,6 +3,7 @@ server: "https://k3s.dev.cm:6443"
 token: "K1012101b9ab5a404897d6a0530f9dac014b571b374251e3741c95fd74e86cee2e5::server:97760133590f01e7a94ab320dfdbfe96"
 
 # 网络相关
+# 阿里云vps 需要添加 extraArgs=--netfilter-mode=off
 vpn-auth: "name=tailscale,joinKey=tskey-auth-ksJXXH4CNTRL-4WRkX448yC6W6yhytK1FD68HMDK4zStw"
 
 # 节点相关