Docs: Fixed rect.md to be correct

Author: Tom-Dynamsoft

programming/javascript/api-reference/core/basic-structures/rect.md

@@ -10,7 +10,7 @@ noTitleIndex: true
 
 # Rect
 
-The `Rect` interface extends the `IntermediateResultUnit` interface and represents a rectangle in a 2D space, providing a JavaScript equivalent of [DSRect](./ds-rect.md).
+The `Rect` interface represents a rectangle in a 2D space, providing a JavaScript equivalent of [DSRect](./ds-rect.md).
 
 > If measured in percentage, the value range for x/y/width/height is 0~100.