docs: clean up README troubleshooting section by removing redundant line

Author: HenryLok0

README.md

@@ -295,5 +295,4 @@ Thank you to all contributors and the open-source community for your support.
 ## Troubleshooting
 
 - Windows path/encoding quirks: run from a local folder (avoid syncing folders) and ensure UTF-8 console.
-- Very large repos: run once with `--cache`, then subsequent commands will be much faster.
-
+- Very large repos: run once with `--cache`, then subsequent commands will be much faster.