Fixed nullable values (#145)

charts/ghost/Chart.lock

charts/ghost/Chart.yaml

charts/ghost/README.md

charts/ghost/charts/mariadb-0.2.2.tgz

charts/ghost/charts/mariadb-0.2.3.tgz

charts/ghost/values.yaml

charts/gitea/Chart.lock

charts/gitea/Chart.yaml

charts/gitea/README.md

charts/gitea/charts/mariadb-0.2.2.tgz

charts/gitea/charts/mariadb-0.2.3.tgz

charts/gitea/charts/postgres-0.2.3.tgz

charts/gitea/charts/postgres-0.2.4.tgz

charts/gitea/charts/redis-0.2.2.tgz

charts/gitea/charts/redis-0.2.3.tgz

charts/gitea/values.yaml

charts/nextcloud/Chart.lock

charts/nextcloud/Chart.yaml

charts/nextcloud/README.md

charts/nextcloud/charts/mariadb-0.2.2.tgz