DOC: update JS library versions in saving charts doc
@@ -146,9 +146,9 @@ javascript-enabled web browser:
<!DOCTYPE html>
<html>
<head>
- <script src="https://cdn.jsdelivr.net/npm/vega@3"></script>
- <script src="https://cdn.jsdelivr.net/npm/vega-lite@2"></script>
- <script src="https://cdn.jsdelivr.net/npm/vega-embed@3"></script>
+ <script src="https://cdn.jsdelivr.net/npm/vega@5"></script>
+ <script src="https://cdn.jsdelivr.net/npm/vega-lite@3"></script>
+ <script src="https://cdn.jsdelivr.net/npm/vega-embed@4"></script>
</head>
<body>
<div id="vis"></div>
