Update README.md

Author: SenonETS

README.md

@@ -1,6 +1,6 @@
 # Step-by-step tutorial of 3D Slicer Extension Module Development
 
 
-## <a href="/02__Interact_Debug_&_Pipeline/README.md" style="text-decoration:none">Step 02: Interact, Debug & Pipeline</a>
+## <a href="/02__Interact_Debug_&_Pipeline/" style="text-decoration:none">Step 02: Interact, Debug & Pipeline</a>
 
 <img src="/02__Interact_Debug_&_Pipeline/SL__Summary.png" alt="isolated" width="800"/>