update readme features

readme.md

@@ -19,15 +19,19 @@ data for [ServiceNow Cloud Observability](https://www.lightstep.com) and various
 | ---------------------------------------------- | ---------- | ------------------------ |
 | Telemetry routing and processing ("gateway")   | 🟢          | 📔 [Community docs][14]  |
 | Kubernetes cluster and workload monitoring     | 🟢          | 📒 [Install guide][10]   |
-| Linux server monitoring                        | 🛠️          | 📒 [Install guide][11]   |
-| Windows server monitoring                      | 🛠️          | 📒 [Install guide][12]   |
-| macOS monitoring                               | 🛠️          | 📒 [Install guide][13]   |
+| Linux server monitoring                        | 🟡          | 📒 [Install guide][11]   |
+| Windows server monitoring                      | 🟡          | 📒 [Install guide][12]   |
+| macOS monitoring                               | 🟡          | 📒 [Install guide][13]   |
+| Remote management (opAMP)                      | 🛠️          | 📒 [Community docs][15]  |
+| HTTP synthetic checks                          | 🛠️          | 📒 [Community docs][16]  |
 
 [10]: /docs/monitor-kubernetes.md
 [11]: /docs/monitor-linux.md
 [12]: /docs/monitor-windows.md
 [13]: /docs/monitor-macos.md
 [14]: https://opentelemetry.io/docs/collector/
+[15]: https://opentelemetry.io/docs/specs/opamp/
+[16]: https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/httpcheckreceiver
 
 ### Supported ServiceNow destinations