Fix some bad output folder in go SDK (#11781)

Author: ArcturusZhang

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

@@ -16,7 +16,6 @@ batch:
   - tag: package-2019-12-preview
   - tag: package-2019-06-preview
   - tag: package-2019-05
-  - tag: package-2019-05-preview
   - tag: package-2019-04
   - tag: package-2018-09
   - tag: package-2018-02-preview
@@ -41,7 +40,7 @@ These settings apply only when `--tag=package-2019-06-preview --go` is specified
 Please also specify `--go-sdk-folder=<path to the root directory of your azure-sdk-for-go clone>`.
 
 ``` yaml $(tag) == 'package-2019-06-preview' && $(go)
-output-folder: $(go-sdk-folder)/services/$(namespace)/mgmt/2019-06-01-preview/$(namespace)
+output-folder: $(go-sdk-folder)/services/preview/$(namespace)/mgmt/2019-06-01-preview/$(namespace)
 ```
 
 ### Tag: package-2018-05 and go
@@ -53,15 +52,6 @@ Please also specify `--go-sdk-folder=<path to the root directory of your azure-s
 output-folder: $(go-sdk-folder)/services/$(namespace)/mgmt/2019-05-01/$(namespace)
 ```
 
-### Tag: package-2019-05-preview and go
-
-These settings apply only when `--tag=package-2019-05-preview --go` is specified on the command line.
-Please also specify `--go-sdk-folder=<path to the root directory of your azure-sdk-for-go clone>`.
-
-``` yaml $(tag) == 'package-2019-05-preview' && $(go)
-output-folder: $(go-sdk-folder)/services/$(namespace)/mgmt/2019-05-01-preview/$(namespace)
-```
-
 ### Tag: package-2019-04 and go
 
 These settings apply only when `--tag=package-2019-04 --go` is specified on the command line.