fix readme and add track 2 configurations (#14582)

Author: ArcturusZhang

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

@@ -2,16 +2,24 @@
 
 These settings apply only when `--go` is specified on the command line.
 
-``` yaml $(go)
+``` yaml $(go) && !$(track2)
 go:
   license-header: MICROSOFT_MIT_NO_VERSION
   namespace: privatedns
   clear-output-folder: true
 ```
 
+``` yaml $(go) && $(track2)
+license-header: MICROSOFT_MIT_NO_VERSION
+module-name: sdk/privatedns/armprivatedns
+module: github.com/Azure/azure-sdk-for-go/$(module-name)
+output-folder: $(go-sdk-folder)/$(module-name)
+azure-arm: true
+```
+
 ### Go multi-api
 
-``` yaml $(go) && $(multiapi)
+``` yaml $(go) && $(multiapi) 
 batch:
   - tag: package-2018-09
 ```

specification/privatedns/resource-manager/readme.md

@@ -26,7 +26,7 @@ These are the global settings for the Private DNS API.
 
 ``` yaml
 openapi-type: arm
-tag: package-2018-09
+tag: package-2020-06
 ```
 
 ### Tag: package-2018-09
@@ -38,11 +38,6 @@ input-file:
   - Microsoft.Network/stable/2018-09-01/privatedns.json
 ```
 
-``` yaml
-openapi-type: arm
-tag: package-2020-01
-```
-
 ### Tag: package-2020-01
 
 These settings apply only when `--tag=package-2020-01` is specified on the command line.
@@ -52,11 +47,6 @@ input-file:
   - Microsoft.Network/stable/2020-01-01/privatedns.json
 ```
 
-``` yaml
-openapi-type: arm
-tag: package-2020-06
-```
-
 ### Tag: package-2020-06
 
 These settings apply only when `--tag=package-2020-06` is specified on the command line.