docs: update README

Author: SoonIter

README.md

@@ -9,8 +9,14 @@ Built on top of `react-reconciler`, this library creates a custom React renderer
 
 ## Installation
 
+The major version of `react-render-to-markdown` follows the React version. Install the one that matches your project:
+
 ```bash
-npm install react-render-to-markdown
+# React 19
+npm install react-render-to-markdown@19
+
+# React 18
+npm install react-render-to-markdown@18
 ```
 
 ## Quick Start

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-render-to-markdown",
-  "version": "19.0.0",
+  "version": "19.0.1",
   "description": "render React components to Markdown strings for SSG-MD",
   "repository": {
     "type": "git",

src/react/render.ts

@@ -1,5 +1,5 @@
 import React from 'react';
-import { MarkdownNode, reconciler, TextNode } from './reconciler.js';
+import { MarkdownNode, TextNode, reconciler } from './reconciler.js';
 
 // Access React internals to intercept the hooks dispatcher.
 // React 19: __CLIENT_INTERNALS_DO_NOT_USE_OR_WARN_USERS_THEY_CANNOT_UPGRADE.H
@@ -87,7 +87,7 @@ function installEffectInterceptor(): () => void {
       if (originalDescriptor) {
         Object.defineProperty(ReactSharedInternals, 'H', originalDescriptor);
       } else {
-        delete (ReactSharedInternals as Record<string, unknown>).H;
+        (ReactSharedInternals as Record<string, unknown>).H = undefined;
         ReactSharedInternals.H = realH;
       }
     }