Update README.md

Author: mzakharo

README.md

@@ -42,7 +42,7 @@ requirements = python3
 # sticky : so that OS restarts us on exit/crash  (optional)
 services = Srv:srv.py:foreground:sticky  
 
-#pick ABI(s)  
+#pick ABI(s) - NOTE: listing more than needed here grows the final .apk size
 android.archs = arm64-v8a, x86
 ```