diff --git a/plugins/tiddlywiki/katex/files/README.md b/plugins/tiddlywiki/katex/files/README.md
index 27f2bc128..307fdbf94 100644
--- a/plugins/tiddlywiki/katex/files/README.md
+++ b/plugins/tiddlywiki/katex/files/README.md
@@ -1,135 +1,86 @@
-# [](https://khan.github.io/KaTeX/)
-[](https://travis-ci.org/Khan/KaTeX)
-[](https://codecov.io/gh/Khan/KaTeX)
-[](https://gitter.im/Khan/KaTeX?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+# [](https://katex.org/)
+[](https://www.npmjs.com/package/katex)
+[](https://circleci.com/gh/KaTeX/KaTeX)
+[](https://codecov.io/gh/KaTeX/KaTeX)
+[](https://gitter.im/KaTeX/KaTeX?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[](https://dependabot.com)
+[](https://www.jsdelivr.com/package/npm/katex)
+
KaTeX is a fast, easy-to-use JavaScript library for TeX math rendering on the web.
* **Fast:** KaTeX renders its math synchronously and doesn't need to reflow the page. See how it compares to a competitor in [this speed test](http://www.intmath.com/cg5/katex-mathjax-comparison.php).
- * **Print quality:** KaTeX’s layout is based on Donald Knuth’s TeX, the gold standard for math typesetting.
+ * **Print quality:** KaTeX's layout is based on Donald Knuth's TeX, the gold standard for math typesetting.
* **Self contained:** KaTeX has no dependencies and can easily be bundled with your website resources.
* **Server side rendering:** KaTeX produces the same output regardless of browser or environment, so you can pre-render expressions using Node.js and send them as plain HTML.
-KaTeX supports all major browsers, including Chrome, Safari, Firefox, Opera, Edge, and IE 9 - IE 11. More information can be found on the [list of supported commands](https://khan.github.io/KaTeX/function-support.html) and on the [wiki](https://github.com/khan/katex/wiki).
+KaTeX is compatible with all major browsers, including Chrome, Safari, Firefox, Opera, Edge, and IE 11.
-## Usage
+KaTeX supports much (but not all) of LaTeX and many LaTeX packages. See the [list of supported functions](https://katex.org/docs/supported.html).
-You can [download KaTeX](https://github.com/khan/katex/releases) and host it on your server or include the `katex.min.js` and `katex.min.css` files on your page directly from a CDN:
+Try out KaTeX [on the demo page](https://katex.org/#demo)!
+
+## Getting started
+
+### Starter template
```html
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+ ...
+
```
-#### In-browser rendering
+You can also [download KaTeX](https://github.com/KaTeX/KaTeX/releases) and host it yourself.
-Call `katex.render` with a TeX expression and a DOM element to render into:
+For details on how to configure auto-render extension, refer to [the documentation](https://katex.org/docs/autorender.html).
-```js
-katex.render("c = \\pm\\sqrt{a^2 + b^2}", element);
-```
-
-If KaTeX can't parse the expression, it throws a `katex.ParseError` error.
-
-#### Server side rendering or rendering to a string
-
-To generate HTML on the server or to generate an HTML string of the rendered math, you can use `katex.renderToString`:
-
-```js
-var html = katex.renderToString("c = \\pm\\sqrt{a^2 + b^2}");
-// '...'
-```
-
-Make sure to include the CSS and font files, but there is no need to include the JavaScript. Like `render`, `renderToString` throws if it can't parse the expression.
-
-#### Security
-
-Any HTML generated by KaTeX *should* be safe from `
](https://khan.github.io/KaTeX/)
-[](https://travis-ci.org/Khan/KaTeX)
-[](https://codecov.io/gh/Khan/KaTeX)
-[](https://gitter.im/Khan/KaTeX?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+# [
](https://katex.org/)
+[](https://www.npmjs.com/package/katex)
+[](https://circleci.com/gh/KaTeX/KaTeX)
+[](https://codecov.io/gh/KaTeX/KaTeX)
+[](https://gitter.im/KaTeX/KaTeX?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[](https://dependabot.com)
+[](https://www.jsdelivr.com/package/npm/katex)
+
KaTeX is a fast, easy-to-use JavaScript library for TeX math rendering on the web.
* **Fast:** KaTeX renders its math synchronously and doesn't need to reflow the page. See how it compares to a competitor in [this speed test](http://www.intmath.com/cg5/katex-mathjax-comparison.php).
- * **Print quality:** KaTeX’s layout is based on Donald Knuth’s TeX, the gold standard for math typesetting.
+ * **Print quality:** KaTeX's layout is based on Donald Knuth's TeX, the gold standard for math typesetting.
* **Self contained:** KaTeX has no dependencies and can easily be bundled with your website resources.
* **Server side rendering:** KaTeX produces the same output regardless of browser or environment, so you can pre-render expressions using Node.js and send them as plain HTML.
-KaTeX supports all major browsers, including Chrome, Safari, Firefox, Opera, Edge, and IE 9 - IE 11. More information can be found on the [list of supported commands](https://khan.github.io/KaTeX/function-support.html) and on the [wiki](https://github.com/khan/katex/wiki).
+KaTeX is compatible with all major browsers, including Chrome, Safari, Firefox, Opera, Edge, and IE 11.
-## Usage
+KaTeX supports much (but not all) of LaTeX and many LaTeX packages. See the [list of supported functions](https://katex.org/docs/supported.html).
-You can [download KaTeX](https://github.com/khan/katex/releases) and host it on your server or include the `katex.min.js` and `katex.min.css` files on your page directly from a CDN:
+Try out KaTeX [on the demo page](https://katex.org/#demo)!
+
+## Getting started
+
+### Starter template
```html
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+ ...
+
```
-#### In-browser rendering
+You can also [download KaTeX](https://github.com/KaTeX/KaTeX/releases) and host it yourself.
-Call `katex.render` with a TeX expression and a DOM element to render into:
+For details on how to configure auto-render extension, refer to [the documentation](https://katex.org/docs/autorender.html).
-```js
-katex.render("c = \\pm\\sqrt{a^2 + b^2}", element);
-```
-
-If KaTeX can't parse the expression, it throws a `katex.ParseError` error.
-
-#### Server side rendering or rendering to a string
-
-To generate HTML on the server or to generate an HTML string of the rendered math, you can use `katex.renderToString`:
-
-```js
-var html = katex.renderToString("c = \\pm\\sqrt{a^2 + b^2}");
-// '...'
-```
-
-Make sure to include the CSS and font files, but there is no need to include the JavaScript. Like `render`, `renderToString` throws if it can't parse the expression.
-
-#### Security
-
-Any HTML generated by KaTeX *should* be safe from `