Fix typo on v4 Migration page

diff --git a/docs/migration.md b/docs/migration.md
index ee3ecb125f94424de32c02f34d2b3e4016cce9c6..e3c68d6f8e67625d3cc43fb895dbb0591ee047a7 100644 (file)
--- a/docs/migration.md
+++ b/docs/migration.md
@@ -125,7 +125,7 @@ New to Bootstrap 4 is the Reboot, a new stylesheet that builds on Normalize with
 ### Grid system
 
 - Added a new `576px` grid breakpoint as `sm`, meaning there are now five total tiers (`xs`, `sm`, `md`, `lg`, and `xl`).
-- Renamed the responsive grid modifier classes from `.col-{breakpoint}-{modifier}-{size}` to `.{modifier}-{breakpoint}-{size}` for simpler grid classes. For example, instead of `.col-md-3.col-md-push-9` it's `col-md-3.push-md-9`.
+- Renamed the responsive grid modifier classes from `.col-{breakpoint}-{modifier}-{size}` to `.{modifier}-{breakpoint}-{size}` for simpler grid classes. For example, instead of `.col-md-3.col-md-push-9` it's `.col-md-3.push-md-9`.
 - Overhauled the grid mixins to merge `make-col` and `make-col-span` into a single `make-col` mixin, thereby ensuring mixins and predefined classes utilize the same float/flex behaviors.
 - Added flexbox utility classes for grid system and components.