Reorder rules of react summary in reference index (#6698)

Small change to match the sidebar order.

src/content/reference/react/index.md

@@ -10,14 +10,6 @@ This section provides detailed reference documentation for working with React. F
 
 The React reference documentation is broken down into functional subsections:
 
-## Rules of React {/*rules-of-react*/}
-
-React has idioms — or rules — for how to express patterns in a way that is easy to understand and yields high-quality applications:
-
-* [Components and Hooks must be pure](/reference/rules/components-and-hooks-must-be-pure) – Purity makes your code easier to understand, debug, and allows React to automatically optimize your components and hooks correctly.
-* [React calls Components and Hooks](/reference/rules/react-calls-components-and-hooks) – React is responsible for rendering components and hooks when necessary to optimize the user experience.
-* [Rules of Hooks](/reference/rules/rules-of-hooks) – Hooks are defined using JavaScript functions, but they represent a special type of reusable UI logic with restrictions on where they can be called.
-
 ## React {/*react*/}
 
 Programmatic React features:
@@ -37,6 +29,14 @@ React-dom contains features that are only supported for web applications (which
 * [Client APIs](/reference/react-dom/client) - The `react-dom/client` APIs let you render React components on the client (in the browser).
 * [Server APIs](/reference/react-dom/server) - The `react-dom/server` APIs let you render React components to HTML on the server.
 
+## Rules of React {/*rules-of-react*/}
+
+React has idioms — or rules — for how to express patterns in a way that is easy to understand and yields high-quality applications:
+
+* [Components and Hooks must be pure](/reference/rules/components-and-hooks-must-be-pure) – Purity makes your code easier to understand, debug, and allows React to automatically optimize your components and hooks correctly.
+* [React calls Components and Hooks](/reference/rules/react-calls-components-and-hooks) – React is responsible for rendering components and hooks when necessary to optimize the user experience.
+* [Rules of Hooks](/reference/rules/rules-of-hooks) – Hooks are defined using JavaScript functions, but they represent a special type of reusable UI logic with restrictions on where they can be called.
+
 ## Legacy APIs {/*legacy-apis*/}
 
 * [Legacy APIs](/reference/react/legacy) - Exported from the `react` package, but not recommended for use in newly written code.