docs: add main folder structure

README.md

@@ -73,6 +73,16 @@ npm run tokens:build
 npm run storybook:build
 ```
 
+## Main folder structure
+
+* `apps/docs`: Contains the main documentation for the project.
+* `apps/docs-react`: Provides a React version of Storybook for showcasing components.
+* `packages/core`: The core of Atomium, responsible for building all the components.
+* `packages/react`: The React version of Atomium, automatically generated by Stencil.
+* `packages/tokens`: Contains the design tokens for Atomium, where all the tokens are defined.
+* `packages/icons`: Contains the icons used in Atomium, where all the icons are stored.
+* `utils/**`: Contains utility modules used throughout the project, providing various helper functions and tools.
+
 ## Stories Documentation
 
 We are using [Storybook](https://storybook.js.org/) to document our components.