feat: add subscription auto-sync, node pools, docker deployment docs

links.txt.example

@@ -0,0 +1,7 @@
+# 在此文件中添加代理链接，每行一个
+# 支持 vmess://, vless://, trojan://, ss:// 格式
+
+# 示例：
+# vmess://eyJ2IjoiMiIsInBzIjoiZXhhbXBsZSIsImFkZCI6IjEyNy4wLjAuMSIsInBvcnQiOiI0NDMiLCJpZCI6IjEyMzQ1Njc4LTEyMzQtMTIzNC0xMjM0LTEyMzQ1Njc4OTAxMiIsImFpZCI6IjAiLCJuZXQiOiJ3cyIsInR5cGUiOiJub25lIiwiaG9zdCI6IiIsInBhdGgiOiIvIiwidGxzIjoidGxzIn0=
+# vless://uuid@example.com:443?encryption=none&type=ws&path=%2Fpath&host=example.com&security=tls#Example
+# trojan://password@example.com:443?security=tls&type=ws&path=%2Fpath#Example