Install writes a fully commented sample env file when no config exists

README.md

@@ -112,9 +112,11 @@ gpu-turnstile.exe --remove-service
 ```
 
 Layout: `C:\Program Files\gpu-turnstile\` holds the exe and
-`gpu-turnstile.env`, logs go to `C:\ProgramData\gpu-turnstile\` — the
-installer sets `LOG_FILE` in the env file by default (there is no console;
-your own `LOG_FILE` setting is kept). The service always runs
+`gpu-turnstile.env`, logs go to `C:\ProgramData\gpu-turnstile\`. If you
+install without a config, the installer writes a sample env file with every
+setting commented and explained — only `LOG_FILE` is active (a service has
+no console). Your own `LOG_FILE` setting is always kept. The service always
+runs
 as the virtual account `NT SERVICE\gpu-turnstile` (low-privilege,
 per-service, no password); the installer automatically grants it write
 access to the install and data directories — nothing else to do.