fix: correct KaTeX delimiter escaping for kramdown math blocks

Author: iasonliu

_layouts/default.html

@@ -20,7 +20,7 @@
     <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/katex.min.css" crossorigin="anonymous">
     <script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/katex.min.js" crossorigin="anonymous"></script>
     <script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/contrib/auto-render.min.js" crossorigin="anonymous"
-            onload="renderMathInElement(document.body, {delimiters: [{left: '$$', right: '$$', display: true}, {left: '$', right: '$', display: false}, {left: '\\\\[', right: '\\\\]', display: true}, {left: '\\\\(', right: '\\\\)', display: false}], throwOnError: false});"></script>
+            onload="renderMathInElement(document.body, {delimiters: [{left: '$$', right: '$$', display: true}, {left: '$', right: '$', display: false}, {left: '\\[', right: '\\]', display: true}, {left: '\\(', right: '\\)', display: false}], throwOnError: false});"></script>
     {% endif %}
 
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