docs: fix test tags typo (#9820)

Co-authored-by: rohan436 <rohan.santhoshkumar@googlemail.com>

Author: Rohan Santhosh

docs/guide/test-tags.md

@@ -204,7 +204,7 @@ vitest --tags-filter=frontend
 vitest --tags-filter="frontend and backend"
 ```
 
-If you are running Vitest UI, you can start a filter with a `tag:` prefix to filter out tests by tags using the same tags expression sytax:
+If you are running Vitest UI, you can start a filter with a `tag:` prefix to filter out tests by tags using the same tags expression syntax:
 
 <img alt="The tags filter in Vitest UI" img-light src="/ui/light-ui-tags.png">
 <img alt="The tags filter in Vitest UI" img-dark src="/ui/dark-ui-tags.png">