Replace "Astropy Team" with "{{ cookiecutter.package_name }} team" in BSD-3 license

Author: jgieseler

{{ cookiecutter.package_name }}/licenses/BSD3.rst

@@ -9,7 +9,7 @@ are permitted provided that the following conditions are met:
 * Redistributions in binary form must reproduce the above copyright notice, this
   list of conditions and the following disclaimer in the documentation and/or
   other materials provided with the distribution.
-* Neither the name of the Astropy Team nor the names of its contributors may be
+* Neither the name of the {{ cookiecutter.package_name }} team nor the names of its contributors may be
   used to endorse or promote products derived from this software without
   specific prior written permission.