Update README.md

README.md

@@ -88,7 +88,7 @@ If you're getting "Internal Server Error" in the web interface:
 
 2. Check the latency viewer log file permissions:
    ```bash
-   chmod 644 latency_viwer.log
+   chmod 644 latency_viewer.log
    ```
    Make sure the directory it's in is writable by the web server.