add linebreak

static/chatbot.js

@@ -27,7 +27,7 @@ $(document).ready(function() {
         if (hasHtml) {
             $messageText = $('<p>').html(message);
         } else {
-            $messageText = $('<p>').html(message.replace(/(https?:\/\/[^\s]+)/g, '<a href="$1">$1</a>'));
+            $messageText = $('<p>').html(message.replace(/(https?:\/\/[^\s]+)/g, '<a href="$1">$1</a>').replace(/(SOURCES:)/, '<br>$1'));
         }
 
         $message.append($messageText);