This article with describe how to rename a site on the CircleScout website app.
1) Find "My Sites" on the top menu and click on it.
2) Locate the site that you want to rename and click on the grey circle, with an arrow in it, at the end of the site box.
3) Find the first box under "site details" and enter the new name for your site.
4) Press "Update Site Name" to save the new name you entered for your site.