message: fix: css class names update
diff: @@ -11,18 +11,30 @@ Import the package css into the top of your main CSS file.
  #### Elements
  | Class | Description |
  -| --------------------------------- | -------------------------------------------------------------------------------------- |
  +| ----------------------------------------- | -------------------------------------------------------------------------------------- |
  | `.bx--listsection__container` | Element containing all list section content |
  | `.bx--listsection__row` | Vertical divisions across the viewport |
  | `.bx--listsection__col` | Horizonal divisions across the viewport and change in width at different screen widths |
  | `.bx--listsection__title` | Title for list section pattern |
  | `.bx--listsection__content` | Content holder for short description |
  -| `.bx--listsection__listgroup_col` | Horizonal division for listgroup element |
  +| `.bx--listsection__listsection-group_col` | Horizonal division for listgroup element |
  | `.bx--listsection__divider_col` | Horizonal division for divider element |
  | `.bx--listsection__divider` | Divider element |
  +| `.bx--listsection-group__col` | list section group column element |
  +| `.bx--listsection-group__title` | list section group title element |
  +| `.bx--listsection-group__list` | list section group list element |
  +| `.bx----listsection-item__col` | list section item column element |
  +| `.bx--listsection-item__title` | list section item title element |
  +| `.bx--listsection-item__content` | list section item content element |
  +| `.bx--listsection-item__link` | list section item Link element |
  +| `.bx--listsection-item__link__inner` | list section item link wrapper element |
  +| `.bx--listsection-item__link__text` | list section item link element |
  +| `.bx--listsection-item__link__icon` | list section item icon element |
  #### Blocks
  | Class | Description |
  -| ------------------ | ---------------------------------------------------- |
  +| ------------------------ | ---------------------------------------------------- |
  | `.bx--listsection` | Highest level class name for the listsection pattern |
  +| `.bx--listsection-group` | list section group component class |
  +| `.bx--listsection-item` | list section item component class |
  