1 files changed, 4 insertions, 0 deletions
diff --git a/12.md b/12.md
index dbdb31c..860ebbb 100644
--- a/12.md
+++ b/12.md
@@ -74,3 +74,7 @@
 ![Characteristic table](12.7.png)
 ![Graphical symbol](12.8.png)
 ![Timing diagram](12.9.png)
+
+---
+
+[Flip-flops ->](13.md)