Add brand & untested metadata & update of notes

Author: rudu

openandroidinstaller/assets/configs/miatoll.yaml

@@ -1,5 +1,6 @@
 metadata:
   maintainer: A non (anon)
+  brand: xiaomi
   device_name: Xiaomi Redmi Note 9S / 9 Pro / 9 Pro Max / 10 Lite / Poco M2 pro
   is_ab_device: false
   device_code: miatoll
@@ -12,12 +13,9 @@ metadata:
     - curtana
     - excalibur
     - joyeuse
-  notes: >
-    - If something goes wrong, you can reinstall MiUI here : https://xiaomifirmwareupdater.com/miui/lavender/
-        
+  untested: true
+  notes:
     - Be careful when choosing OrangeFox version, Android 12 & 13 ROM needs OrangeFox version code with `A12`, for example `R11.1_5_A12`. Android 10 & 11 ROM needs OrangeFox version code without `A12` (bellow on the page)
-    
-    - **This device has never been tested with OAI.** It can go wrong. You may have to finish the installation with command lines. If you test, please report the result on GitHub.
 requirements:
   android: 12
 steps: