Add registry setting to all charts (#1169)

charts/commento/Chart.yaml

charts/commento/README.md

charts/commento/RELEASENOTES.md

charts/commento/templates/deployment.yaml

charts/commento/values.yaml

charts/ghost/Chart.yaml

charts/ghost/README.md

charts/ghost/RELEASENOTES.md

charts/ghost/templates/deployment.yaml

charts/ghost/templates/secureconfig.yaml

charts/ghost/values.yaml

charts/gitea/Chart.yaml

charts/gitea/README.md

charts/gitea/RELEASENOTES.md

charts/gitea/templates/deployment.yaml

charts/gitea/templates/post-install.yaml

charts/gitea/values.yaml

charts/graylog/Chart.yaml

charts/graylog/README.md

charts/graylog/RELEASENOTES.md