Add entry for pagination component changes to v4 migration guide

Refs #18110

[skip sauce]

diff --git a/docs/migration.md b/docs/migration.md
index 966de5101c7241037efd666066e15cbe0a848267..f14ef6d3d941b4b362ba3a816bf9d9c4abaa722a 100644 (file)
--- a/docs/migration.md
+++ b/docs/migration.md
@@ -109,6 +109,10 @@ New to Bootstrap 4 is the Reboot, a new stylesheet that builds on Normalize with
 
 - Renamed `.previous` and `.next` to `.pager-prev` and `.pager-next`.
 
+### Pagination
+
+- Explicit classes (`.page-item`, `.page-link`) are now required on the descendants of `.pagination`s
+
 ### Panels, thumbnails, and wells
 
 Dropped entirely for the new card component.