Update warning message to use weight

src/console.rs

@@ -44,7 +44,7 @@ pub fn warn_about_ignored_pages(site: &Site) {
 
     if !ignored_pages.is_empty() {
         warn(&format!(
-            "{} page(s) ignored (missing date or order in a sorted section):",
+            "{} page(s) ignored (missing date or weight in a sorted section):",
             ignored_pages.len()
         ));
         for path in ignored_pages {