Merge pull request #48979 from Arhell/ja-link

[ja] Update _index.md

Author: k8s-ci-robot

content/ja/docs/concepts/workloads/pods/_index.md

@@ -210,6 +210,6 @@ Kubernetesが共通のPod APIを他のリソース内(たとえば{{< glossary_t
 
   * [Aurora](https://aurora.apache.org/documentation/latest/reference/configuration/#job-schema)
   * [Borg](https://research.google.com/pubs/pub43438.html)
-  * [Marathon](https://mesosphere.github.io/marathon/docs/rest-api.html)
+  * [Marathon](https://github.com/d2iq-archive/marathon)
   * [Omega](https://research.google/pubs/pub41684/)
   * [Tupperware](https://engineering.fb.com/data-center-engineering/tupperware/)