Update SUMMARY.md

Author: qibaoguang

SUMMARY.md

@@ -62,9 +62,23 @@
       * [19.3. 使用Maven插件运行](III. Using Spring Boot/19.3. Using the Maven plugin.md)
       * [19.4. 使用Gradle插件运行](III. Using Spring Boot/19.4. Using the Gradle plugin.md)
       * [19.5. 热交换](III. Using Spring Boot/19.5. Hot swapping.md)
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-   * [20. 打包用于生产的应用程序](III. Using Spring Boot/20. Packaging your application for production.md)
-   * [21. 接下来阅读什么](III. Using Spring Boot/21. What to read next.md)
+   * [20. 开发者工具](III. Using Spring Boot/20. Developer tools.md)
+      * [20.1 默认属性](III. Using Spring Boot/20.1 Property defaults.md)
+      * [20.2 自动重启](III. Using Spring Boot/20.2 Automatic restart.md)
+         * [20.2.1 排除资源](III. Using Spring Boot/20.2.1 Excluding resources.md)
+         * [20.2.2 查看其他路径](III. Using Spring Boot/20.2.2 Watching additional paths.md)
+         * [20.2.3 禁用重启](III. Using Spring Boot/20.2.3 Disabling restart.md)
+         * [20.2.4 使用触发器文件](III. Using Spring Boot/20.2.4 Using a trigger file.md)
+         * [20.2.5 自定义restart类加载器](III. Using Spring Boot/20.2.5 Customizing the restart classloader.md)
+         * [20.2.6 已知限制](III. Using Spring Boot/20.2.6 Known limitations.md)
+      * [20.3 LiveReload](III. Using Spring Boot/20.3 LiveReload.md)
+      * [20.4 全局设置](III. Using Spring Boot/20.4 Global settings.md)
+      * [20.5 远程应用](III. Using Spring Boot/20.5 Remote applications.md)
+         * [20.5.1 运行远程客户端应用](III. Using Spring Boot/20.5.1 Running the remote client application.md)
+         * [20.5.2 远程更新](III. Using Spring Boot/20.5.2 Remote update.md)
+         * [20.5.3 远程调试通道](III. Using Spring Boot/20.5.3 Remote debug tunnel.md)
+    * [21. 打包用于生产的应用](III. Using Spring Boot/21. Packaging your application for production.md)
+    * [22. 接下来阅读什么](III. Using Spring Boot/22. What to read next.md)
 * [IV. Spring Boot特性](IV. Spring Boot features/README.md)
    * [22. SpringApplication](IV. Spring Boot features/22. SpringApplication.md)
       * [22.1. 自定义Banner](IV. Spring Boot features/22.1. Customizing the Banner.md)