fix

SUMMARY.md

@@ -18,10 +18,10 @@
   - [支持向量机 SVM [WIP]](./2-Supervised/2.6-SVM.md)
   - [核技巧 Kernel Trick](./2-Supervised/2.7-KernelTrick.md)
 - [机器学习实践](./MLPractice/README.md)
-  - [评估指标](./MLPractice/Metrics.md)
+  - [梯度下降的变种](./MLPractice/GDVariants.md)
   - [过拟合和欠拟合](./MLPractice/OverfitUnderfit.md)
   - [数据集分割与验证](./MLPractice/Dataset.md)
-  - [梯度下降的变种](./MLPractice/GDVariants.md)
+  - [评估指标](./MLPractice/Metrics.md)
 - [Old School [WIP]](./OldSchool/README.md)
   - [约束问题 CSP [WIP]](./OldSchool/CSP.md)
   - [广度搜索 BFS [WIP]](./OldSchool/BFS.md)