Update README.md

Enhance visibility of log2ram filesystem type

Changed the command...
  `df -h | grep log2ram`
to: 
  `df -hT | grep log2ram` 

This provides additional clarity by explicitly showing the type of filesystem (e.g. tmpfs) where 'log2ram' is mounted. This makes the output more useful for diagnostics and ensuring correct configuration.

README.md

@@ -59,7 +59,7 @@ The log is also written to `/var/log/log2ram.log`.
 You can also inspect the mount folder in RAM with:
 
 ```bash
-# df -h | grep log2ram
+# df -hT | grep log2ram
 log2ram          40M  532K   40M   2% /var/log
 ```
 or also: