[docs]: add code docs for listed components

[Ansub]

Feature Description 📝

add documentation in code for these components:

./src/components/code
├── Code.tsx
├── CodeGroup.tsx
├── CodeGroupFromFile.tsx
├── ComponentPreview.tsx
└── PreviewCodeGroup.tsx

Can add something like this on top:

/**
   * This function does this and this 
   *this a path or any param you wannna talk about
   * useful 
    * example of one component where this  component is being used
   */