update readme

readme.md

@@ -4,6 +4,8 @@ View your notes as a static html site. Browse a live sample of it [here](https:/
 
 ![](./screenshot.png)
 
+Tested with [pandoc v2.19.2](https://github.com/jgm/pandoc/releases/tag/2.19.2).
+
 
 ## Why?
 

templates/article.html

@@ -4,6 +4,13 @@
 <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Open+Sans&display=swap" />
 <link rel="stylesheet" type="text/css" href="/styles.css" />
 <script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
+<script>
+	MathJax = {
+		tex: {
+			tags: 'ams'
+		}
+	}
+</script>
 <script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
 <title>$title$</title>
 </head>