Wiki update re. DNS provider creds

[BarryBahrami]

May I suggest a revision to the wiki about storing DNS provider credentials in a function app environment variable? This is a great function app but have had clients object to storing their API keys in environment variables where others in the org could retrieve them.

I recommend these keys are saved in the same keyvault as a secret and then the environment variable can point to that secret.

For example:

name: Acmebot:GoDaddy:ApiKey
value would be something like: @Microsoft.KeyVault(SecretUri=https://MySecretVault.vault.azure.net/secrets/GODADDY-API-KEY)

the actual URL would be the secret ID in keyvault. Remove the bit after the secret name so that it uses the latest version and also give the function app secret user permission in the vault.

thank you

[shibayan]

The Wiki has been updated to include a reference to the Key Vault Reference. Thanks.