diff --git a/03_Machine_Learning/README.md b/03_Machine_Learning/README.md
index a9f2d03e65fcbc1860ae0c726be4e3c37591ed85..b4e0adbfca34a02be2aaaef7236bb6ba21b6f4c5 100644
--- a/03_Machine_Learning/README.md
+++ b/03_Machine_Learning/README.md
@@ -1,3 +1,3 @@
 Notebook with "described" in its name: The main notebook with descriptions.<br />
 Other notebooks:  Similar to these "described" notebooks.<br />
-Folder DS : contains data for the notebooks
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+Folder DS : contains test and train data for the notebooks
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