CSS contains non-ASCII quotes

manual/stylesheets/style.css

@@ -16,7 +16,7 @@
  *
  */
 body {
-    font-family: “Palatino Linotype”, Palatino, Georgia, “Century Schoolbook”, serif;
+    font-family: "Palatino Linotype", Palatino, Georgia, "Century Schoolbook", serif;
 }
 
 h2 {
@@ -184,7 +184,7 @@ table.attr td.center, h1.center, p.center {
 }
 
 table.attr td.left {
-    font-family: “Palatino Linotype”, Palatino, Georgia, “Century Schoolbook”, serif;
+    font-family: "Palatino Linotype", Palatino, Georgia, "Century Schoolbook", serif;
     font-size: 1rem;
     font-style: normal;
     text-align: left;