docs: fix by proofreading

Co-authored-by: MGatner <mgatner@icloud.com>

Author: kenjis

content/blog/2023-01-10.4.3-released.md

@@ -9,7 +9,7 @@ Thanks to the team and many contributors, we released v4.3.0 with lots of enhanc
 Unfortunately, **there are some breaking changes, so please upgrade with caution**.
 Please read the [ChangeLog](https://www.codeigniter.com/user_guide/changelogs/v4.3.0.html) and the [Upgrading Guide](https://www.codeigniter.com/user_guide/installation/upgrade_430.html) carefully.
 
-**You must update spark file and a few Config files.**
+**You must update the spark executable and a few Config files.**
 
 I hope most existing apps will not break unless you use your own classes that extend framework classes.