diff --git a/index.html b/index.html
index af04a384bde1e3281d398985a6584be9ab929ceb..e6e43a306b062955f56cee3768d8aaa391fbf81b 100644
--- a/index.html
+++ b/index.html
@@ -1,5 +1,5 @@
<!DOCTYPE html>
-<html lang="en">
+<html lang="de">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
@@ -501,5 +501,6 @@
</div>
<script src="index.js"></script>
+ <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
</body>
</html>
\ No newline at end of file