Fix CI urls in README

See gh-1270

Author: snicoll

README.adoc

@@ -1,4 +1,4 @@
-= Spring Initializr image:https://ci.spring.io/api/v1/teams/initializr/pipelines/initializr/jobs/build/badge["Build Status", link="https://ci.spring.io/teams/initializr/pipelines/initializr?groups=Build"] image:https://badges.gitter.im/spring-io/initializr.svg[link="https://gitter.im/spring-io/initializr?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge"]
+= Spring Initializr image:https://ci.spring.io/api/v1/teams/initializr/pipelines/initializr-0.11.x/jobs/build/badge["Build Status", link="https://ci.spring.io/teams/initializr/pipelines/initializr-0.11.x?groups=Build"] image:https://badges.gitter.im/spring-io/initializr.svg[link="https://gitter.im/spring-io/initializr?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge"]
 
 :boot-doc: https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle
 :code: https://github.com/spring-io/initializr/blob/main