Update web_src/js/features/comp/EditorMarkdown.js

Co-authored-by: delvh <dev.lh@web.de>

Author: wxiaoguang

web_src/js/features/comp/EditorMarkdown.js

@@ -73,7 +73,7 @@ function handleNewline(textarea, e) {
 
   e.preventDefault();
   if (!line) {
-    // clear current line
+    // clear current line if we only have i.e. '1. ' and the user presses enter again to finish creating a list
     textarea.value = value.slice(0, lineStart) + value.slice(lineEnd);
   } else {
     // start a new line with the same indention and prefix