Correct log file name to 'retroarch.log'

Author: Amiga500

website/docs/03-faq/index.mdx

@@ -388,7 +388,7 @@ In order to troubleshoot a particular game or emulator failure or issue, you may
 * Go to **Apps** › **RetroArch** › **Settings** › **Logging** and enable **Log to File**.  
 * Back out to the main RetroArch menu, and go to **Configuration File** and choose **Save Current Configuration**.  
 * Launch the game(s), or perform the action you are trying to troubleshoot.  
-* The output log file will be written to `.tmp_update/logs/RetroArch.log`.  
+* The output log file will be written to `.tmp_update/logs/retroarch.log`.  
 
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