Update codeit.js

Author: benhatsor

lib/codeit.js

@@ -653,8 +653,18 @@ class CodeitElement extends HTMLElement {
 
           } else {
 
-            // insert matching closing char
-            cd.insert(close[open.indexOf(event.key)], { moveToEnd: false });
+            // if cursor is on last line
+            if (textSel.start === cd.textContent.length) {
+              
+              // insert newline
+              cd.insert((close[open.indexOf(event.key)] + '\n'), { moveToEnd: false });
+              
+            } else {
+
+              // insert matching closing char
+              cd.insert(close[open.indexOf(event.key)], { moveToEnd: false });
+              
+            }
 
           }