fix lazy iterator?

src/lib.rs

@@ -80,7 +80,7 @@ fn media_content(item: &Item) -> Content{
 pub fn process_content(content: &str) -> Vec<Content> {
     let items = itemize_content(content);
     let mut result: Vec<Content> = Vec::new();
-    let cnt = items.iter().map(|i| {
+    let _ = items.iter().map(|i| {
         match i {
             Item::Paragraph(children) => {
                 result.push(markdown_content(i));