Change the function name

src/script.js

@@ -177,13 +177,13 @@
 		});
 
 		saveHtmlBtn.addEventListener('click', function (e) {
-		  save_file();
+			saveFile();
 		});
 		
 		window.addEventListener('keydown',function(event) {
 		  if ((event.ctrlKey)&&(event.keyCode==83)){
 			event.preventDefault();
-			save_file();
+			saveFile();
 		  }
 		});
 
@@ -235,7 +235,7 @@
 		});
 	}
 
-	function save_file() {
+	function saveFile() {
 		var html = editur.cm.html.getValue();
 		var css = editur.cm.css.getValue();
 		var js = editur.cm.js.getValue();