Missing docs for running locally

[fboucheros]

Missing:

• AppSettings.json

   ,
  "Parameters":{
    "CustomDomain": "https://c5m.ca",
    "DefaultRedirectUrl": "https://azure.com"
  }

• Install the Azure Function Core Tools azure-functions-core-tools github
• DevCert: https://learn.microsoft.com/en-gb/aspnet/core/security/enforcing-ssl?view=aspnetcore-9.0&tabs=visual-studio%2Clinux-sles#ssl-linux