CrossAxisWrapMode.Dynamic documentation - specify dimension is adjust…

…ed while scrolling

Summary:
we in IGTX recently tried using CrossAxisWrapMode.Dynamic.  Based on the documentation, we were expecting the height of our H-Scroll Pager to wrap around the largest card, precomputed upfront.  Turns out the expected behavior is not to precompute the heights, but rather to adjust to the tallest as the user scrolls, dynamically.
Wondering if y'all thought the wording in this diff offers a clearer description of its capabilities.  Feel free to disregard if not!

Reviewed By: pentiumao

Differential Revision: D69559580

fbshipit-source-id: 3b35e4e483bbc56a9bee3ec8a7731b4c2ac07f82

litho-widget/src/main/java/com/facebook/litho/widget/collection/CrossAxisWrapMode.kt

@@ -29,9 +29,10 @@ enum class CrossAxisWrapMode {
   MatchFirstChild,
 
   /**
-   * The cross axis dimension will match the largest item in the [Collection]. Measuring all the
-   * children comes with a high performance cost, especially for infinite scrolls. This should only
-   * be used if absolutely necessary.
+   * The cross axis dimension will match the largest item seen so far in the [Collection]. The
+   * dimension is adjusted dynamically (ie: during scrolling). Measuring all the children comes with
+   * a high performance cost, especially for infinite scrolls. This should only be used if
+   * absolutely necessary.
    *
    * This is an experimental feature and your Section surface will take a perf hit if you use it.
    *