Update motlp availability in ECH regions (#494)

* Update motlp availability in ECH regions

+ Add the list of supported regions for ECH Tech Preview

* Update docs/reference/motlp.md

Co-authored-by: Andrew Wilkins <[email protected]>

* Update motlp.md

---------

Co-authored-by: Andrew Wilkins <[email protected]>
Co-authored-by: Fabrizio Ferri-Benedetti <[email protected]>

Author: 3 people

docs/reference/motlp.md

@@ -47,8 +47,11 @@ To use the {{ecloud}} {{motlp}} you need the following:
   - [EDOT Cloud Forwarder](/reference/edot-cloud-forwarder/index.md)
   - Any other forwarder that supports the OTLP protocol.
 
-:::{note}
 You don't need APM Server when ingesting data through the Managed OTLP Endpoint. The APM integration (`.apm` endpoint) is a legacy ingest path that only supports traces and translates OTLP telemetry to ECS, whereas {{motlp}} natively ingests OTLP data.
+
+:::{note}
+For {{ech}} deployments, {{motlp}} is currently supported in the following AWS regions: ap-southeast-1, ap-northeast-1, ap-south-1, eu-west-1, eu-west-2, us-east-1, us-west-2, us-east-2. 
+Support for additional regions and cloud providers is in progress and will be expanded over time. 
 :::
 
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