merge with error monitoring and fine-tune

Author: inventarSarah

docs/platforms/javascript/guides/react/index.mdx

@@ -1,7 +1,6 @@
 ---
 title: React
 description: "Learn how to manually set up Sentry in your React app and capture your first errors."
-description: "Learn how to manually set up Sentry in your React app and capture your first errors."
 sdk: sentry.javascript.react
 categories:
   - javascript
@@ -14,10 +13,6 @@ categories:
 
 Choose the features you want to configure, and this guide will show you how:
 
-## Step 1: Install
-
-Choose the features you want to configure, and this guide will show you how:
-
 <OnboardingOptionButtons
   options={["error-monitoring", "performance", "session-replay"]}
 />
@@ -41,25 +36,6 @@ Choose the features you want to configure, and this guide will show you how:
 
 Run the command for your preferred package manager to add the Sentry SDK to your application:
 
-<Expandable title="Want to learn more about these features?">
-
-- [**Issues**](/product/issues) (always enabled): Sentry's core error monitoring product that automatically reports errors,
-  uncaught exceptions, and unhandled rejections. If you have something that
-  looks like an exception, Sentry can capture it.
-- [**Tracing**](/product/tracing): Track software performance while seeing the
-  impact of errors across multiple systems. For example, distributed tracing
-  allows you to follow a request from the frontend to the backend and back.
-- [**Session Replay**](/product/explore/session-replay/web):
-  Get to the root cause of an issue faster by viewing a video-like reproduction
-  of what was happening in the user's browser before, during, and after the
-  problem.
-
-</Expandable>
-
-### Install the Sentry SDK
-
-Run the command for your preferred package manager to add the Sentry SDK to your application:
-
 ```bash {tabTitle:npm}
 npm install @sentry/react --save
 ```
@@ -74,13 +50,11 @@ pnpm add @sentry/react
 
 ## Step 2: Configure
 
-## Step 2: Configure
-
 ### Initialize the Sentry SDK
 
 To import and initialize Sentry, create a file in your project's root directory, for example, `instrument.js`, and add the following code:
 
-```javascript {filename:instrument.js} {"onboardingOptions": {"performance": "1, 6-9, 12-20", "session-replay": "10, 21-27"}}
+```javascript {filename:instrument.js} {"onboardingOptions": {"performance": "6-9, 12-20", "session-replay": "10, 21-27"}}
 import * as Sentry from "@sentry/react";
 
 Sentry.init({
@@ -115,10 +89,6 @@ Sentry.init({
 
 Initialize Sentry as early as possible in your application. We recommend putting the import of your initialization code as the first import in your app's entry point:
 
-### Apply Instrumentation to Your App
-
-Initialize Sentry as early as possible in your application. We recommend putting the import of your initialization code as the first import in your app's entry point:
-
 ```javascript
 // Sentry initialization should be imported first!
 import "./instrument";
@@ -134,16 +104,8 @@ root.render(<App />);
 
 To make sure Sentry captures all your app's errors, configure error handling based on your React version.
 
-## Step 3: Capture React Errors
-
-To make sure Sentry captures all your app's errors, configure error handling based on your React version.
-
 ### Configure Error Hooks (React 19+)
 
-### Configure Error Hooks (React 19+)
-
-The `createRoot` and `hydrateRoot` methods provide error hooks to capture errors automatically. These hooks apply to all React components mounted to the root container.
-Integrate Sentry with these hooks and customize error handling:
 The `createRoot` and `hydrateRoot` methods provide error hooks to capture errors automatically. These hooks apply to all React components mounted to the root container.
 Integrate Sentry with these hooks and customize error handling:
 
@@ -248,7 +210,7 @@ To verify that Sentry captures errors and creates issues in your Sentry project,
 <OnboardingOption optionId="performance">
 ### Tracing
 
-To test your tracing configuration, update the previous code snippet by starting a performance trace to measure the time it takes for the execution of your code:
+To test your tracing configuration, update the previous code snippet to start a performance trace to measure the time it takes for the execution of your code:
 
 ```javascript
 <button