add license

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,4 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2025 Gleb Zaharov. License: GPLv3 (see LICENSE). -->
+
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@color/ic_launcher_background"/>
     <foreground android:drawable="@mipmap/ic_launcher_foreground"/>