Apply suggestions from code review

Co-authored-by: Grégoire Paris <[email protected]>

UPGRADE.md

@@ -71,8 +71,8 @@ return [
 Files in XML, YAML or JSON also changed in a similar way. Please refer to the official documentation for more details.
 
 Note: the option in `table_storage` needs to be updated only if you have changed the metadata table settings
-by using v2 options as `table_name`, `column_name`, `column_length` or `executed_at_column_name`. If you did not change
-those settings is recommended to not provide the options and let doctrine figure out the best settings.
+by using v2 options such as `table_name`, `column_name`, `column_length` or `executed_at_column_name`. If you did not change
+those settings, it is recommended to not provide the options and let doctrine figure out the best settings.
 
 ## Custom migration templates