diff --git a/03_Machine_Learning/README.md b/03_Machine_Learning/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..5725c3dee9565e6ade000c52bae6cc0a1574d2c7
--- /dev/null
+++ b/03_Machine_Learning/README.md
@@ -0,0 +1,2 @@
+Notebook with "described" in its name: The main notebook with descriptions.<br />
+Other notebooks:  Similar to these "described" notebooks.
\ No newline at end of file