incorporate changes from mark's review

src/handlers/note.rs

@@ -4,8 +4,6 @@
 //!
 //! ```md
 //! @rustbot note summary-title
-//!
-//! ...details details details...
 //! ```
 //!
 //! If this is the first summary entry, rustbot will amend the original post (the top-level comment) to add a "Notes" section. The section should **not** be edited by hand.
@@ -17,6 +15,7 @@
 //!
 //! - ["summary-title" by @username](link-to-comment)
 //!
+//! Generated by triagebot, see [help](https://github.com/rust-lang/triagebot/wiki/Note) for how to add more
 //! <!-- TRIAGEBOT_SUMMARY_END -->
 //! ```
 //!
@@ -50,9 +49,9 @@ impl NoteDataEntry {
     pub fn to_markdown(&self) -> String {
         format!(
             "\n- [\"{title}\" by @{author}]({comment_url})",
-            title = self.title.to_owned(),
-            author = self.author.to_owned(),
-            comment_url = self.comment_url.to_owned()
+            title = self.title,
+            author = self.author,
+            comment_url = self.comment_url
         )
     }
 }