docs(opentelemetry): Point README to documentation (#24642)

similar to #24618 but for @sentry/opentelemetry

---------

Co-authored-by: GPT-6 <codex@openai.com>

Author: nicohrubec

packages/opentelemetry/README.md

@@ -10,97 +10,15 @@
 [![npm dm](https://img.shields.io/npm/dm/@sentry/opentelemetry.svg)](https://www.npmjs.com/package/@sentry/opentelemetry)
 [![npm dt](https://img.shields.io/npm/dt/@sentry/opentelemetry.svg)](https://www.npmjs.com/package/@sentry/opentelemetry)
 
-This package allows you to send your OpenTelemetry trace data to Sentry via OpenTelemetry SpanProcessors.
+OpenTelemetry support for Sentry’s JavaScript SDKs.
 
-If you are using `@sentry/node`, OpenTelemetry support is included out of the box. This package is only necessary if you
-are setting up OpenTelemetry support for Sentry yourself.
+## Documentation
 
-## Installation
+- [OpenTelemetry documentation](https://docs.sentry.io/platforms/javascript/guides/node/opentelemetry/)
+- [Capture spans from OpenTelemetry APIs](https://docs.sentry.io/platforms/javascript/guides/node/opentelemetry/using-opentelemetry-apis/)
+- [Use your own OpenTelemetry pipeline](https://docs.sentry.io/platforms/javascript/guides/node/opentelemetry/custom-setup/)
 
-```bash
-npm install @sentry/opentelemetry
+## Support
 
-# Or yarn
-yarn add @sentry/opentelemetry
-```
-
-Note that `@sentry/opentelemetry` depends on the following peer dependencies:
-
-- `@opentelemetry/api` version `1.0.0` or greater
-
-## Usage
-
-This package exposes a few building blocks you can add to your OpenTelemetry setup in order to capture OpenTelemetry
-traces to Sentry.
-
-This is how you can use this in your app:
-
-1. Initialize Sentry, e.g. `@sentry/node`!
-2. Call `setupEventContextTrace(client)`
-3. Add `SentrySampler` as sampler
-4. Add `SentrySpanProcessor` as span processor
-5. Register the Sentry context manager (`SentryAsyncLocalStorageContextManager`, or `wrapContextManagerClass` for a custom base)
-6. Add `SentryPropagator` as propagator
-7. Setup OTEL-powered async context strategy for Sentry via `setOpenTelemetryContextAsyncContextStrategy()`
-
-For example, you could set this up as follows:
-
-```js
-import * as Sentry from '@sentry/node';
-import {
-  SentryAsyncLocalStorageContextManager,
-  SentryPropagator,
-  SentrySampler,
-  SentrySpanProcessor,
-  setupEventContextTrace,
-  setOpenTelemetryContextAsyncContextStrategy,
-} from '@sentry/opentelemetry';
-import { context, propagation, trace } from '@opentelemetry/api';
-
-function setupSentry() {
-  Sentry.init({
-    dsn: 'xxx',
-  });
-
-  const client = Sentry.getClient();
-  setupEventContextTrace(client);
-
-  const provider = new BasicTracerProvider({
-    sampler: new SentrySampler(client),
-  });
-  provider.addSpanProcessor(new SentrySpanProcessor());
-
-  // Initialize the provider
-  trace.setGlobalTracerProvider(provider);
-  context.setGlobalContextManager(new SentryAsyncLocalStorageContextManager());
-
-  setOpenTelemetryContextAsyncContextStrategy();
-}
-```
-
-A full setup example can be found in
-[node-experimental](https://github.com/getsentry/sentry-javascript/blob/develop/packages/node-experimental).
-
-## Sentry Tracer Provider
-
-`SentryTracerProvider` is a minimal OpenTelemetry tracer provider which creates native Sentry spans directly.
-It is useful when code uses the global OpenTelemetry API and you do not need the full OpenTelemetry SDK span processor
-and exporter pipeline.
-
-```js
-import { trace } from '@opentelemetry/api';
-import { SentryTracerProvider } from '@sentry/opentelemetry';
-
-trace.setGlobalTracerProvider(new SentryTracerProvider());
-
-const span = trace.getTracer('example').startSpan('work');
-span.end();
-```
-
-In `@sentry/node`, this is the default tracer provider.
-
-The `SentryTracerProvider` does not handle OpenTelemetry logs and metrics.
-
-## Links
-
-- [Official SDK Docs](https://docs.sentry.io/quickstart/)
+- [Report a bug](https://github.com/getsentry/sentry-javascript/issues/new/choose)
+- [Contributing](https://github.com/getsentry/sentry-javascript/blob/develop/CONTRIBUTING.md)