Add README

detectors/azure/vm/README.md

@@ -0,0 +1,28 @@
+# Azure VM Resource detector
+
+The Azure VM resource detector supports detecting attributes specific to Azure VMs.
+
+## Usage
+
+```golang
+// Instantiate a new host resource detector
+azureVmResourceDetector := vm.New()
+resource, err := azureVmResourceDetector.Detect(context.Background())
+```
+
+## Supported attributes
+
+According to semantic conventions for
+[host](https://github.com/open-telemetry/semantic-conventions/blob/main/docs/resource/host.md),
+[cloud](https://github.com/open-telemetry/semantic-conventions/blob/main/docs/resource/cloud.md),
+and
+[os](https://github.com/open-telemetry/semantic-conventions/blob/main/docs/resource/os.md)
+attributes, each of the following attributes is added if it is available:
+
+* `cloud.provider`
+* `cloud.platform`
+* `host.id`
+* `host.name`
+* `host.type`
+* `os.type`
+* `os.version`