Update index.md

contrib/machine-learning/index.md

@@ -11,8 +11,7 @@
 - [TensorFlow.md](tensorFlow.md)
 - [PyTorch.md](pytorch.md)
 - [Types of optimizers](Types_of_optimizers.md)
-- [Random Forest](Random_Forest.md)
-- [Ensemble Learning](ensemble_learning.md)
+- [Ensemble Learning](ensemble-learning.md)
 - [Logistic Regression](logistic-regression.md)
 - [Clustering](clustering.md)
 - [Grid Search](grid-search.md)