Update link in docs

Author: wooorm

docs/guides/math.mdx

@@ -71,7 +71,8 @@ console.log(
   At the time of writing, the last version is:
 
   ```html
-  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.9/dist/katex.min.css" integrity="sha384-n8MVd4RsNIU0tAv4ct0nTaAbDJwPJzDEaqSD1odI+WdtXRGWt2kTvGFasHpSy3SV" crossorigin="anonymous">
+  <!-- Get the latest one from: https://katex.org/docs/browser -->
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.10/dist/katex.min.css" integrity="sha384-wcIxkf4k558AjM3Yz3BBFQUbk/zgIYC2R0QpeeYb+TwlBVMrlgLqwRjRtGZiK7ww" crossorigin="anonymous">
   ```
 
   To get the latest link to the stylesheet, go to [`katex docs`][katex docs].