Updated overview section of ConfigMaps #30729

Author: deepakcpakhale06

content/en/docs/tasks/configure-pod-container/configure-pod-configmap.md

@@ -8,10 +8,12 @@ card:
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 <!-- overview -->
+Many applications rely on configuration which is used during either application initialization or runtime.
+Most of the times there is a requirement to adjust values assigned to configuration parameters.
+ConfigMaps is the kubernetes way to inject application pods with configuration data. 
 ConfigMaps allow you to decouple configuration artifacts from image content to keep containerized applications portable. This page provides a series of usage examples demonstrating how to create ConfigMaps and configure Pods using data stored in ConfigMaps.
 
 
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 ## {{% heading "prerequisites" %}}