README: update Makefile link [no ci]
diff --git a/README.md b/README.md
index 1b12b32..c10ece6 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
1. [Generate](https://github.com/proppy/tiny_caravel_project_example/generate) a new project based on this template
-2. Create a new [Wokwi](https://wokwi.com/) project and update [WOKWI_PROJECT_ID](Makefile#L1).
+2. Create a new [Wokwi](https://wokwi.com/) project and update [WOKWI_PROJECT_ID](Makefile#L227).
3. Push and check the [![user_project_ci](https://github.com/proppy/tiny_caravel_user_project/actions/workflows/user_project_ci.yml/badge.svg)](https://github.com/proppy/tiny_caravel_user_project/actions/workflows/user_project_ci.yml) summary.