[Go] configure devhub reade.go.md (Azure#20842)

Author: Alancere

specification/developerhub/resource-manager/readme.go.md

@@ -0,0 +1,11 @@
+## Go
+
+These settings apply only when `--go` is specified on the command line.
+
+``` yaml $(go) && $(track2)
+license-header: MICROSOFT_MIT_NO_VERSION
+module-name: sdk/resourcemanager/devhub/armdevhub
+module: github.com/Azure/azure-sdk-for-go/$(module-name)
+output-folder: $(go-sdk-folder)/$(module-name)
+azure-arm: true
+```

specification/developerhub/resource-manager/readme.md

@@ -37,3 +37,21 @@ These settings apply only when `--tag=package-preview-2022-04` is specified on t
 input-file:
   - Microsoft.DevHub/preview/2022-04-01-preview/workflow.json
 ```
+
+---
+# Code Generation
+
+
+## Swagger to SDK
+
+This section describes what SDK should be generated by the automatic system.
+This is not used by Autorest itself.
+
+``` yaml $(swagger-to-sdk)
+swagger-to-sdk:
+  - repo: azure-sdk-for-go
+```
+
+## Go
+
+See configuration in [readme.go.md](./readme.go.md)