Update README.md

GAOYANGAU · web-flow · commit f9722443d5af · 2019-11-25T14:25:03.000+08:00
diff --git a/README.md b/README.md
@@ -6,11 +6,11 @@ native-Qlearning.py
 
 ## 6 Deep Learning：
 
-feedforward_neural_network
+feedforward_neural_network/
 
-convolutional_neural_network
+convolutional_neural_network/
 
-recurrent_neural_network
+recurrent_neural_network/
 
 ## 8.1 NIPS DQN：
 
