doc: add KCL acronym (en)

Signed-off-by: Martin Thøgersen <martint@martint.dk>

Author: th0ger

docs/user_docs/getting-started/intro.md

@@ -6,7 +6,7 @@ sidebar_position: 1
 
 ## What is KCL?
 
-[KCL](https://github.com/kcl-lang/kcl) is an open-source configuration and policy language hosted by the Cloud Native Computing Foundation (CNCF) as a Sandbox Project. Built on a foundation of constraints and functional programming principles, KCL enhances the process of writing complex configurations, particularly in cloud-native environments. By leveraging advanced programming language techniques, KCL promotes improved modularity, scalability, and stability in configuration management. It simplifies logic writing, offers easy-to-use automation APIs, and seamlessly integrates with existing systems.
+[KCL](https://github.com/kcl-lang/kcl) is an open-source configuration and policy language hosted by the Cloud Native Computing Foundation (CNCF) as a Sandbox Project. Built on a foundation of constraints and functional programming principles, KCL enhances the process of writing complex configurations, particularly in cloud-native environments. By leveraging advanced programming language techniques, KCL promotes improved modularity, scalability, and stability in configuration management. It simplifies logic writing, offers easy-to-use automation APIs, and seamlessly integrates with existing systems. KCL is short for Kubernetes Configuration Language.
 
 ## Why KCL?