add note about correct gha account for ui automator

PiperOrigin-RevId: 591125018

README.md

diff --git a/README.md b/README.md
index 4ed35c5..87ff09b 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,8 @@
 1.  Login to your Google Home App.
 1.  Make sure the Google Home App's version is between `3.1.1.14` and `3.7.1.4`.
 
+NOTE: Please select the correct Google account on Google Home App.
+
 ### Installation
 
 1.  clone this repo.