Describe requirements to use source code

README.md

@@ -1,3 +1,14 @@
 # NeuralNetwork
 
-Practice neural network with number recognition.
+Practice neural network with number recognition.
+
+## Requirements
+
+### Download data samples
+
+Execute the script `resources/retrieve_digit_database.bash`.
+
+### Install python dependencies
+
+`pip3 install python-mnist`
+