Update MIGRATION.md

Co-authored-by: Michael Shilman <shilman@users.noreply.github.com>

MIGRATION.md

@@ -503,7 +503,7 @@ We are doing this to make Storybook more flexible and to allow users to use a va
 
 In Storybook 8.0, we have removed the `framework.options.fastRefresh` option.
 
-The fast-refresh implementation currently relies on the `react-refresh/babel` package. While this has served us well, integrating this dependency could pose challenges. Specifically, it would necessitate locking users into a specific Babel version. This could become a bottleneck, especially when Babel 8 is released. There is uncertainty about whether react-refresh/babel will seamlessly support Babel 8, potentially hindering users from updating smoothly.
+The fast-refresh implementation currently relies on the `react-refresh/babel` package. While this has served us well, integrating this dependency could pose challenges. Specifically, it locks users into a specific Babel version. This could become a problem when Babel 8 is released. There is uncertainty about whether react-refresh/babel will seamlessly support Babel 8, potentially hindering users from updating smoothly.
 
 Furthermore, the existing implementation does not account for cases where fast-refresh might already be configured in a user's Babel configuration. Rather than filtering out existing configurations, our current approach could lead to duplications, resulting in a sub-optimal development experience.