How To Add Keywords inside AndroidMainFest.xml

Hey Guys
Please Tell me How To Add Keywords inside AndroidMainFest xml

You can make the classes/activities of your app with some keyword names and then when you declare it on the manifest file, you will get keywords on it, example:

<activity
android:name=".MyKeyword">

Also you can put comments, but I never tried put keywords inside this file, do you know if it's work?

Thanks So Much , Not I dont Know Sorry