add wiki info to comment markdown

src/handlers/note.rs

@@ -70,6 +70,7 @@ impl NoteData {
         for entry in &self.entries {
             text.push_str(&entry.to_markdown());
         }
+        text.push_str("\n\nGenerated by triagebot, see [help](https://github.com/rust-lang/triagebot/wiki/Note) for how to add more");
         text
     }
 }