doc(astro): Update Readme (#9333)

Update the Astro readme with up-to-date installation
instructions and links to our docs.

Author: Lms24

packages/astro/README.md

@@ -10,12 +10,9 @@
 [![npm dm](https://img.shields.io/npm/dm/@sentry/astro.svg)](https://www.npmjs.com/package/@sentry/astro)
 [![npm dt](https://img.shields.io/npm/dt/@sentry/astro.svg)](https://www.npmjs.com/package/@sentry/astro)
 
-<!--
-TODO: Add links once we have official docs
 ## Links
 
  - [Official SDK Docs](https://docs.sentry.io/platforms/javascript/guides/astro/)
--->
 
 ## Experimental Note
 
@@ -28,98 +25,41 @@ This package is a wrapper around `@sentry/node` for the server and `@sentry/brow
 
 ## Installation and Setup
 
-### 1. Registering the Sentry Astro integration:
+Install the Sentry Astro SDK with the `astro` CLI:
 
-Add the `sentryAstro` integration to your `astro.config.mjs` file:
-
-```javascript
-import { sentryAstro } from "@sentry/astro/integration";
-
-export default defineConfig({
-  // Rest of your Astro project config
-  integrations: [
-    sentryAstro({
-      dsn: '__DSN__',
-    }),
-  ],
-})
+```bash
+npx astro add @sentry/astro
 ```
 
-This is the easiest way to configure Sentry in an Astro project.
-You can pass a few additional options to `sentryAstro` but the SDK comes preconfigured in an opinionated way.
-If you want to fully customize your SDK setup, you can do so, too:
+Complete the setup by adding your DSN and source maps upload configuration:
 
-### 2. [Optional] Uploading Source Maps
-
-To upload source maps to Sentry, simply add the `project` and `authToken` options to `sentryAstro`:
-
-```js
-// astro.config.mjs
-import { sentryAstro } from "@sentry/astro/integration";
+```javascript
+import { defineConfig } from "astro/config";
+import sentry from "@sentry/astro";
 
 export default defineConfig({
-  // Rest of your Astro project config
   integrations: [
-    sentryAstro({
-      dsn: '__DSN__',
-      project: 'your-project-slug',
-      authToken: import.meta.env('SENTRY_AUTH_TOKEN'),
+    sentry({
+      dsn: "__DSN__",
+      sourceMapsUploadOptions: {
+        project: "your-sentry-project-slug",
+        authToken: process.env.SENTRY_AUTH_TOKEN,
+      },
     }),
   ],
-})
+});
 ```
 
-You can also define these values as environment variables in e.g. a `.env` file
-or in you CI configuration:
+Follow [this guide](https://docs.sentry.io/product/accounts/auth-tokens/#organization-auth-tokens) to create an auth token and add it to your environment variables:
 
-```sh
-SENTRY_PROJECT="your-project"
+```bash
 SENTRY_AUTH_TOKEN="your-token"
 ```
 
-Follow [this guide](https://docs.sentry.io/product/accounts/auth-tokens/#organization-auth-tokens) to create an auth token.
-
-### 3. [Optional] Advanced Configuration
-
-To fully customize and configure Sentry in an Astro project, follow step 1 and in addition,
-add a `sentry.client.config.(js|ts)` and `sentry.server.config(js|ts)` file to the root directory of your project.
-Inside these files, you can call `Sentry.init()` and use the full range of Sentry options.
-
-Configuring the client SDK:
-
-```js
-// sentry.client.config.ts or sentry.server.config.ts
-import * as Sentry from "@sentry/astro";
-
-Sentry.init({
-  dsn: "__DSN__",
-  beforeSend(event) {
-    console.log("Sending event on the client");
-    return event;
-  },
-  tracesSampler: () => {/* ... */}
-});
-```
-
-**Important**: Once you created a sentry config file, the SDK options passed to `sentryAstro` will be ignored for the respective runtime. You can also only define create of the two files.
-
-#### 3.1 Custom file location
+## Configuration
 
-If you want to move the `sentry.*.config` files to another location,
-you can specify the file path, relative to the project root, in `sentryAstro`:
+Check out our docs for configuring your SDK setup:
 
-```js
-// astro.config.mjs
-import { sentryAstro } from "@sentry/astro/integration";
-
-export default defineConfig({
-  // Rest of your Astro project config
-  integrations: [
-    sentryAstro({
-      dsn: '__DSN__',
-      clientInitPath: '.config/sentry.client.init.js',
-      serverInitPath: '.config/sentry.server.init.js',
-    }),
-  ],
-})
-```
+* [Getting Started](https://docs.sentry.io/platforms/javascript/guides/astro/)
+* [Manual Setup and Configuration](https://docs.sentry.io/platforms/javascript/guides/astro/manual-setup/)
+* [Source Maps Upload](https://docs.sentry.io/platforms/javascript/guides/astro/sourcemaps/)