[chore] [connector/datadog] add status table to readme (#25903)

For consistency with other components.

Signed-off-by: Alex Boten <[email protected]>

connector/datadogconnector/README.md

@@ -1,5 +1,25 @@
 # Datadog Connector
 
+<!-- status autogenerated section -->
+| Status        |           |
+| ------------- |-----------|
+| Distributions | [] |
+| Issues        | [![Open issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aopen%20label%3Aconnector%2Fdatadog%20&label=open&color=orange&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aopen+is%3Aissue+label%3Aconnector%2Fdatadog) [![Closed issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aclosed%20label%3Aconnector%2Fdatadog%20&label=closed&color=blue&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aclosed+is%3Aissue+label%3Aconnector%2Fdatadog) |
+| [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@mx-psi](https://www.github.com/mx-psi), [@gbbr](https://www.github.com/gbbr), [@dineshg13](https://www.github.com/dineshg13) |
+
+[alpha]: https://github.com/open-telemetry/opentelemetry-collector#alpha
+
+## Supported Pipeline Types
+
+| [Exporter Pipeline Type] | [Receiver Pipeline Type] | [Stability Level] |
+| ------------------------ | ------------------------ | ----------------- |
+| traces | metrics | [alpha] |
+
+[Exporter Pipeline Type]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/connector/README.md#exporter-pipeline-type
+[Receiver Pipeline Type]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/connector/README.md#receiver-pipeline-type
+[Stability Level]: https://github.com/open-telemetry/opentelemetry-collector#stability-levels
+<!-- end autogenerated section -->
+
 ## Description
 
 The Datadog Connector is a connector component that computes Datadog APM Stats pre-sampling in the event that your traces pipeline is sampled using components such as the tailsamplingprocessor or probabilisticsamplerprocessor.
@@ -82,4 +102,3 @@ service:
 </tr></table>
 
 Here we have two traces pipelines that ingest the same data but one is being sampled. The one that is sampled has its data sent to the datadog backend for you to see the sampled subset of the total traces sent across. The other non-sampled pipeline of traces sends its data to the metrics pipeline to be used in the APM stats. This unsampled pipeline gives the full picture of how much data the application emits in traces. 
-