Correct link to the theme json reference. (WordPress#60517)

docs/getting-started/glossary.md

@@ -70,7 +70,7 @@ This refers to a collection of features that ultimately allows users to edit the
 
 The CSS styles generated by WordPress and enqueued as an embedded stylesheet in the front end of the site. The stylesheet ID is `global-styles-inline-css`. The contents of this stylesheet come from the default `theme.json` of WordPress, the theme's `theme.json`, and the styles provided by the user via the global styles sidebar in the site editor.
 
-See [theme.json reference docs](/docs/reference-guides/theme-json-reference.md)</a>, the [how to guide](/docs/how-to-guides/themes/global-settings-and-styles.md), and an introduction to [styles in the block editor](/docs/explanations/architecture/styles.md).
+See [theme.json reference docs](/docs/reference-guides/theme-json-reference/README.md)</a>, the [how to guide](/docs/how-to-guides/themes/global-settings-and-styles.md), and an introduction to [styles in the block editor](/docs/explanations/architecture/styles.md).
 
 Compare to <a href="#block-styles">block styles</a>.