docs: Increase CSS for max page width again (see #4085)

Author: magreenblatt

docs/assets/css/style.scss

@@ -16,6 +16,10 @@ section {
   max-width: 900px !important;
 }
 
+.wrapper {
+  max-width: 1100px !important;
+}
+
 /* Smaller header text */
 header h1 {
   font-size: 1.5em;