README: fix link to upgrade section
@@ -10,7 +10,7 @@ etcd operator manages etcd clusters atop [Kubernetes][k8s-home], automating thei
- [Resize](#resize-an-etcd-cluster)
- [Recover a member](#member-recovery)
- [Backup and restore a cluster](#disaster-recovery)
-- [Rolling upgrade](#try-upgrade-etcd-cluster)
+- [Rolling upgrade](#upgrade-an-etcd-cluster)
Read [Best Practices](./doc/best_practices.md) for more information on how to use etcd operator better.
