Need example for schedule-yaml (there are other yaml files that need to be documented.)

We need an example for the `schedule-yaml` for:
```
az ml pipeline create-schedule --experiment-name
--name
--pipeline-id
[--only-show-errors]
[--resource-group]
[--schedule-yaml]
[--workspace-name]
```

---
#### Document Details

⚠ *Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.*

* ID: 90bc921c-f7f2-0c82-9540-b3ee2dd471ba
* Version Independent ID: 00d7a81a-5be2-345d-200f-f89e9e8a7754
* Content: [az ml pipeline](https://docs.microsoft.com/en-us/cli/azure/ext/azure-cli-ml/ml/pipeline?view=azure-cli-latest#ext-azure-cli-ml-az-ml-pipeline-create-schedule)
* Content Source: [latest/docs-ref-autogen/ext/azure-cli-ml/ml/pipeline.yml](https://github.com/MicrosoftDocs/azure-docs-cli/blob/live/latest/docs-ref-autogen/ext/azure-cli-ml/ml/pipeline.yml)
* GitHub Login: @rloutlaw
* Microsoft Alias: **routlaw**