Update docs/platforms/javascript/common/migration/v9-to-v10.mdx

Co-authored-by: Abhijeet Prasad <[email protected]>

Author: andreiborza

docs/platforms/javascript/common/migration/v9-to-v10.mdx

@@ -55,7 +55,7 @@ The removal entails **no breaking API changes**. However, in rare cases, you mig
 
 ## Removed `_experiments.autoFlushOnFeedback` for Session Replays
 
-The `_experiments.autoFlushOnFeedback` option was removed and is now default behavior.
+The `_experiments.autoFlushOnFeedback` option was removed and is now the default behavior.
 
 </PlatformCategorySection>