This is the required delta to be added to your azure.parameters.json in order to install Publishing Service into PaaS (modify script values!)

Publishing.Service-azure.parameters.json

"modules": {
  "value": {
    "items": [
      {
        "name": "ps",
        "templateLink": "https://yourdomain.com/ps-arm/<version>/azuredeploy.json",
        "parameters": {
          "templateLinkAccessToken": "Optional access token for the template if stored in Azure storage. Otherwise should be empty string.",
          "psMsDeployPackageUrl": "<URL of the WDP file Sitecore Publishing Service *-x64.wdp.zip>",
          "psModuleMsDeployPackageUrl": "<URL of the WDP file Sitecore Publishing Module *.scwdp.zip>"
        }
      }
    ]
  }
}