docs: correct the example of usage the value parameter in badge (#2853)

Author: btea

docs/content/2.guide/6.badges.md

@@ -78,7 +78,7 @@ Overrides the default label text. You can pass any string to customize the label
 Overrides the default value text of the badge. You can pass any string to customize the value displayed on the right half of the badge.
 
 - **Default**: Calculated values depending on the badge type (e.g., "v4.2.0", "5.4M").
-- **Usage**: `?label=YOUR_LABEL`
+- **Usage**: `?value=YOUR_VALUE`
 
 ### `labelColor`