Pratik Dey

Signed-off-by: [Pratik Dey]([email protected]) Localizes `content/bn/containers-as-a-service.md` to Bengali This is an initial PR as may need some improvements! Tracking issue: https://github.com/cncf/glossary/issues/410

Currently the auto scaling in content/bn/ folder markdown file has an '_' as a separator. Request to add a '-' as a separator