更新 README 以反映 Node.js 版本要求和 Docker 使用说明 (#80)

Co-authored-by: binaryify <binaryify@gmail.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

util/client-sign.js

@@ -9,9 +9,9 @@ class AdvancedClientSignGenerator {
     try {
       const interfaces = os.networkInterfaces()
       for (let interfaceName in interfaces) {
-        const networkInterface = interfaces[interfaceName]
-        for (let i = 0; i < networkInterface.length; i++) {
-          const alias = networkInterface[i]
+        const interfaceItem = interfaces[interfaceName]
+        for (let i = 0; i < interfaceItem.length; i++) {
+          const alias = interfaceItem[i]
           // 排除内部地址和无效地址
           if (
             alias.mac &&
@@ -166,4 +166,4 @@ class AdvancedClientSignGenerator {
   }
 }
 
-module.exports = AdvancedClientSignGenerator
+module.exports = AdvancedClientSignGenerator