end with newline

docs/_includes/index.css

@@ -547,4 +547,4 @@ main .elv-toc + h1 .direct-link {
 
 .mdi.mdi-content-copy {
     --svg: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' width='24' height='24'%3E%3Cpath fill='black' d='M19 21H8V7h11m0-2H8a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h11a2 2 0 0 0 2-2V7a2 2 0 0 0-2-2m-3-4H4a2 2 0 0 0-2 2v14h2V3h12V1Z'/%3E%3C/svg%3E");
-}
+}