How to remove powered by blogger attribution

1:Go to your blogger dashboard
2:Go to template
3:Click edit Html
4:Press Ctrl+F
5:Go to jump widget, Click Attribution 1
6:You will see this Keyword <b:widget id='Attribution1' locked='true' title='' type='Attribution'>
7:Change it like this Keyword <b:widget id='Attribution1' locked='false' title='' type='Attribution'>