diff --git a/src/README.md b/src/README.md
index 079c20b..ccb44ef 100644
--- a/src/README.md
+++ b/src/README.md
@@ -1 +1,25 @@
-# Main functions
+### To run from the downloaded source code
+run.py
+
+#### Main functionality files
+EasyGA.py
+attributes.py
+
+#### Decorators used to simply code
+decorators.py
+
+#### Genetic Algorithm process
+crossover/
+mutation/
+parent/
+survivor/
+termination/
+
+#### Building blocks
+structure/
+
+#### Fitness functions
+fitness_examples/
+
+#### Testing
+test_EasyGA.py