message: update imagebuilder typescript readme for release
diff: @@ -7,7 +7,7 @@ Please also specify `--typescript-sdks-folder=<path to root folder of your azure
  typescript:
  azure-arm: true
  package-name: "@azure/arm-imagebuilder"
  - output-folder: "$(typescript-sdks-folder)/packages/@azure/arm-imagebuilder"
  + output-folder: "$(typescript-sdks-folder)/sdk/imagebuilder/arm-imagebuilder"
  clear-output-folder: true
  generate-metadata: true
  ```
  