Expanded container term in Glossary.

Author: T-Lakshmi

content/en/docs/reference/glossary/container.md

@@ -16,4 +16,4 @@ tags:
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 Containers decouple applications from underlying host infrastructure to make deployment easier in different cloud or OS environments, and for easier scaling.
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+The applications that run inside the container are called containerized applications and the process of bundling these applications and their dependencies into a container image is called containerization.