fix typo

README.md

@@ -68,8 +68,9 @@ You can use Amdfan to monitor your AMD video cards using the `monitor` flag. Thi
 
 ## Configuration
 
-Running `amdfan print-default --configuration` will dump out the default configuration that would get generated for `/etc/amdfan.yml` when you first run it as a service. Commented 
+Running `amdfan print-default --configuration` will dump out the default configuration that would get generated for `/etc/amdfan.yml` when you first run it as a service. If a value is not specified, it will use a default value if possible.
 
+The following config is probably a reasonable setup:
 ``` bash
 speed_matrix:
 - [4, 4]
@@ -87,6 +88,7 @@ frequency: 5
 # cards:
 # - card0
 ```
+
 You can use this to generate your configuration by doing `amdfan print-default --configuration | sudo tee amdfan.yml`, which you can manually edit.
 
 `speed_matrix` (required): a list of thresholds [temperature, speed] which are interpolated to calculate the fan speed.