@@ -8,5 +8,8 @@
88
99 <link rel="stylesheet" href="css/style.css">
1010 <link href="https://fonts.googleapis.com/css?family=PT+Serif&subset=cyrillic" rel="stylesheet">
11− <link rel="stylesheet" media="screen" href="https://fontlibrary.org/face/pt-mono" type="text/css"/></script>
11+<link rel="stylesheet" media="screen" href="https://fontlibrary.org/face/pt-mono" type="text/css">
12+<script type="text/javascript" async
13+ src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/MathJax.js?config=TeX-MML-AM_CHTML">
14+</script>
1215</head>