Add minimum version to otel node docs and fix snippets (#8080)

src/platform-includes/performance/opentelemetry-install/javascript.nextjs.mdx

@@ -12,6 +12,8 @@ npm install @sentry/nextjs @sentry/opentelemetry-node
 yarn add @sentry/nextjs @sentry/opentelemetry-node
 ```
 
+The minimum required version of the `@sentry/node` and the `@sentry/opentelemetry-node` package is `7.20.0` and their versions should always be aligned.
+
 <Note>
 
 Note that @sentry/opentelemetry-node depends on the following peer dependencies:

src/platform-includes/performance/opentelemetry-install/node.mdx

@@ -6,6 +6,8 @@ npm install @sentry/node @sentry/opentelemetry-node
 yarn add @sentry/node @sentry/opentelemetry-node
 ```
 
+The minimum required version of the `@sentry/node` and the `@sentry/opentelemetry-node` package is `7.20.0` and their versions should always be aligned.
+
 <Note>
 
 Note that @sentry/opentelemetry-node depends on the following peer dependencies:

src/platform-includes/performance/opentelemetry-setup/javascript.nextjs.mdx

@@ -1,6 +1,6 @@
 1. Follow the Next.js instructions to set up a [manual OpenTelemetry configuration](https://nextjs.org/docs/app/building-your-application/optimizing/open-telemetry#manual-opentelemetry-configuration).
 
-2. Check to make sure you've added `instrumentation.{js,ts}` and `instrumentation.node.{js,ts}` files to your application.
+2. Check to make sure you've added `instrumentation.{js,ts}` and `instrumentation.node.{js,ts}` files to your application. Note that, until this feature moves out of the experimental phase, Next.js requires you to set `experimental.instrumentationHook: true` in your `next.config.js` to enable these files.
 
 3. Enable your `sentry.server.config.js` file to be able to use the OpenTelemetry instrumenter option.
 
@@ -25,6 +25,10 @@ import { OTLPTraceExporter } from "@opentelemetry/exporter-trace-otlp-http";
 import { Resource } from "@opentelemetry/resources";
 import { SemanticResourceAttributes } from "@opentelemetry/semantic-conventions";
 import { SimpleSpanProcessor } from "@opentelemetry/sdk-trace-node";
+import {
+ SentrySpanProcessor,
+ SentryPropagator,
+} from "@sentry/opentelemetry-node";
 
 const sdk = new NodeSDK({
  resource: new Resource({