Update genIndex to add ane xtra newline

scripts/genIndex.js

@@ -36,6 +36,7 @@ let content = `/*
 	You should have received a copy of the GNU Affero General Public License
 	along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
+
 `;
 
 // node scripts/genIndex.js /path/to/dir