chore: lowercase for filenames

docs/user/tutorial/machine_learning_tools.md

@@ -0,0 +1,15 @@
+```{warning}
+FIXME(Andrei/Jordan): to be done
+```
+
+# Machine Learning Tools
+
+Give examples with tensors, matrix multiplications, reshape, relu, sigmoid, flatten, clip, transpose, dot etc
+
+Do we need to speak about batch norm?
+
+Do we need to speak about sum?
+
+Do we need to speak about pools?
+
+Explain that convolution will come later