Make list of applied class names more readable

Author: silvenon

src/CSSTransition.js

@@ -231,12 +231,12 @@ CSSTransition.propTypes = {
 
   /**
    * The animation classNames applied to the component as it appears, enters,
-   * exits or has finished the transition. A single name can be provided and it
-   * will be suffixed for each stage: e.g.
+   * exits or has finished the transition. A single name can be provided, which
+   * will be suffixed for each stage, e.g. `classNames="fade"` applies:
    *
-   * `classNames="fade"` applies `fade-appear`, `fade-appear-active`,
-   * `fade-appear-done`, `fade-enter`, `fade-enter-active`, `fade-enter-done`,
-   * `fade-exit`, `fade-exit-active`, and `fade-exit-done`.
+   * - `fade-appear`, `fade-appear-active`, `fade-appear-done`
+   * - `fade-enter`, `fade-enter-active`, `fade-enter-done`
+   * - `fade-exit`, `fade-exit-active`, `fade-exit-done`
    *
    * **Note**: `fade-appear-done` and `fade-enter-done` will _both_ be applied.
    * This allows you to define different behavior for when appearing is done and