Links to communication sub-sections don't work

The links under "in this article" do not correctly move to the relevant sub-headers. It appears that the HTML ids use snake case (az_communication_delete) but the links expect kebab case (az-communication-delete).

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#### Document Details

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* ID: 8ec8803e-fcee-e902-7731-c12985791bda
* Version Independent ID: 784fcd92-5fae-ec84-6d48-981e4c4cbc0c
* Content: [az communication](https://docs.microsoft.com/en-us/cli/azure/communication?view=azure-cli-latest)
* Content Source: [latest/docs-ref-autogen/communication.yml](https://github.com/MicrosoftDocs/azure-docs-cli/blob/master/latest/docs-ref-autogen/communication.yml)
* GitHub Login: @rloutlaw
* Microsoft Alias: **routlaw**