Update README.md

Author: geekgirljoy

README.md

@@ -80,10 +80,12 @@ The Simple example trains a single neural network to perform the XOR operation.
 
 [simple_train.php](examples/logic_gates/simple_train.php)
 
+[simple_train_epoch.php](examples/logic_gates/simple_train_epoch.php)
+
 [simple_test.php](examples/logic_gates/simple_test.php)
 
 
-###### All
+##### All
 
 The All example trains 7 seperate neural networks to perform the AND, NAND, NOR, NOT, OR, XNOR & XOR operations.