message: fix(issue-1857): styles readme fixed
diff: Import the package css into the top of your main CSS file.
  ```css
  -@import '@carbon/ibmdotcom-styles/scss/patterns/blocks/feature-card/feature-card';
  +@import '@carbon/ibmdotcom-styles/scss/patterns/blocks/feature-card-block-large/feature-card-block-large';
  ```
  #### Elements
  | Class | Description |
  -| ------------------------- | ------------------------------------------- |
  -| `.bx--feature-card__card` | Card element within the FeatureCard pattern |
  +| ------------------------------------- | ----------------------------------------------------- |
  +| `.bx--feature-card-block-large__card` | Card element within the FeatureCardBlockLarge pattern |
  #### Blocks
  | Class | Description |
  -| ------------------- | ---------------------------------------------------- |
  -| `.bx--feature-card` | Highest level class name for the FeatureCard pattern |
  +| ------------------------------- | -------------------------------------------------------------- |
  +| `.bx--feature-card-block-large` | Highest level class name for the FeatureCardBlockLarge pattern |
  