docs: better description of types package

Author: ghiscoding

packages/excel-builder-vanilla-types/README.md

@@ -1,8 +1,8 @@
 # @excel-builder-vanilla/types
 
-This package contains only the shared interfaces and types of excel-builder-vanilla's package.
+This package contains only the shared types and interfaces of excel-builder-vanilla's package.
 
-A use-case for `@excel-builder-vanilla/types` is when you want to import excel-builder-vanilla's to create interfaces as shown below.
+A use-case for `@excel-builder-vanilla/types` is when you want to import excel-builder-vanilla's types to create a custom interface without importing the entire excel-builder-vanilla package.
 
 ```ts
 import type { ExcelStyleInstruction, Worksheet, Workbook } from '@excel-builder-vanilla/types';