diff --git a/readme.md b/readme.md
index 79b0fb692..d85e0ba1d 100644
--- a/readme.md
+++ b/readme.md
@@ -1,5 +1,7 @@
 # Spring PetClinic Sample Application [![Build Status](https://github.com/spring-projects/spring-petclinic/actions/workflows/maven-build.yml/badge.svg)](https://github.com/spring-projects/spring-petclinic/actions/workflows/maven-build.yml)
 
+# branch2_diff
+
 [![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/spring-projects/spring-petclinic) [![Open in GitHub Codespaces](https://github.com/codespaces/badge.svg)](https://github.com/codespaces/new?hide_repo_select=true&ref=main&repo=7517918)
 
 ## Understanding the Spring Petclinic application with a few diagrams