Add OpenTelemetry RUM content pack

.github/CODEOWNERS

@@ -530,3 +530,4 @@
 /packages/zoom @elastic/security-service-integrations
 /packages/zscaler_zia @elastic/security-service-integrations
 /packages/zscaler_zpa @elastic/security-service-integrations
+/packages/otel_rum_dashboards @elastic/apm-agent-rum

packages/otel_rum_dashboards/changelog.yml

@@ -0,0 +1,6 @@
+# newer versions go on top
+- version: "0.0.1"
+  changes:
+    - description: Initial draft of the package
+      type: enhancement
+      link: https://github.com/elastic/integrations/pull/1 # FIXME Replace with the real PR link

packages/otel_rum_dashboards/docs/README.md

@@ -0,0 +1,34 @@
+{{- generatedHeader }}
+{{/*
+This template can be used as a starting point for writing documentation for your new integration. For each section, fill in the details
+described in the comments.
+
+Find more detailed documentation guidelines in https://www.elastic.co/docs/extend/integrations/documentation-guidelines
+*/}}
+# OpenTelemetry RUM Integration for Elastic
+
+## Overview
+
+Use this instration to get a dashboard which displays metrics from your web applications instrumented by Opentelemetry JS SDK.
+
+### Compatibility
+
+This integration has ben tested with OpenTelemetry JS SDK `2.2.0` and with OpenTelemetry semantic conventions `1.38.0`. It should work with work with newer versions as long as there are no breaking changes in `browser.*` namespace.
+
+## What do I need to use this integration?
+
+This integration will show metrics only if you are monitoring web applications with OpenTelemetry JS SDK. If you are new to OpenTelemetry RUM you can check the [guide](https://www.elastic.co/docs/solutions/observability/applications/otel-rum) on how to start with the Elastic stack.
+
+
+### Validation
+{{/* How can the user test whether the integration is working? Including example commands or test files if applicable */}}
+
+TODO
+
+## Troubleshooting
+
+TODO
+
+### Inputs used
+{{/* All inputs used by this package will be automatically listed here. */}}
+{{ inputDocs }}