Log into the WordPress Dashboard.On the left in the sidebar, hover over “Settings” and click General.
The “Site title” and the “Tagline” can be changed here. Enter a new title and tagline. Click Save Changes.
Now Visit your WordPress site and you will see the title and tagline changed.
!. First you have to login your account.
2. Then open your profile, go to your topic.
3. there the editing option is given .
$. click on that and edit your topic.