@ should be removed in the front of the file names containing configuration in the examamples

Each example has the config file name starting with @. that should be removed from the 6 examples we have on this page.

az ad app update --id e042ec79-34cd-498f-9d9f-123456781234 --required-resource-accesses @manifest.json

---
#### Document Details

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* ID: 921aa920-c25f-5227-aabb-49116da38fa7
* Version Independent ID: 9b5a53ad-edf8-4d89-f8e6-cde01b7866f6
* Content: [az ad app](https://docs.microsoft.com/en-us/cli/azure/ad/app?view=azure-cli-latest#az_ad_app_update)
* Content Source: [latest/docs-ref-autogen/ad/app.yml](https://github.com/MicrosoftDocs/azure-docs-cli/blob/master/latest/docs-ref-autogen/ad/app.yml)
* Service: **active-directory**
* GitHub Login: @rloutlaw
* Microsoft Alias: **routlaw**