Changes in Lang Files Dashboard

Lang Path	Status	En Updates	PR
content/ja/examples/application/guestbook/frontend-service.yaml # Last Commit: 2019-03-07	en-file-updated	Last update: 2021-06-17 Commit: updating tutorial to match source 2021-06-17 Merge Commit: Merge pull request #28452 from jimangel/sync-guestbook-updates 2021-06-17 Commit: Remove Master/Slave terminology from stateless application tutorial. 2021-01-19 Merge Commit: Merge pull request #26141 from jimangel/remove-redis-and-master-slave-terminology-2 2021-02-07