readme: remove note about untested state

worked like a charm

README.md

@@ -1,7 +1,7 @@
 # yoga-bios-unlock
 
-Based on FlyGoat's work to unlock the BIOS advanced menu documented [here](https://zhuanlan.zhihu.com/p/184982689)
-I wrote that tool to unlock my yoga laptop without using a proprietary software which is only available for Windows.
+Based on FlyGoat's work to unlock the BIOS advanced menu documented [here](https://zhuanlan.zhihu.com/p/184982689),
+I wrote that tool to unlock my yoga laptop without using a proprietary software which is only available on Windows.
 
 I'd like to thank FlyGoat a lot for giving me the right direction on how to translate his guide into low-level functions
 provided by glibc.
@@ -13,16 +13,19 @@ This tool will unlock the advanced menu in your Lenovo Yoga Slim 7 14ARE05.
 This tool may eat your cat, burn your house or do anything else beside the expected task.
 So use it at your own risk and be aware that you're playing around with your BIOS which may end in a bricked device.
 
-> Since I am still waiting for the arrival of my Yoga laptop this is quiet untested!
-
 ## Usage
 
     git clone https://github.com/esno/yoga-bios-unlock.git
     cd ./yoga-bios-unlock
     make
 
-    su -c ./yoga-bios-unlock
-
-### Dry-run
+    # ./yoga-bios-unlock --dry-run
+    Enabled dry-run
+    WARNING: use at your own risk!
+    Agree? (y/Y) y
+    Port 0x72 is 0xf4 and would be set to 0xf7
+    Port 0x73 is 0x00 and would be set to 0x77
 
-    ./yoga-bios-unlock --dry-run
+    # ./yoga-bios-unlock          
+    WARNING: use at your own risk!
+    Agree? (y/Y) y