adjust branch b1 remove read me modify b1
add tnafta to file b1
Revert "add tnafta to file b1"

This reverts commit 91fdcc0986099a4a022423660514b881a23469bd.
Revert "Revert "add tnafta to file b1""

This reverts commit 63629eb3e765d63cb7f9f199e48b47f5885b5900.