Wrong string interpolation syntax in cosmosdb example

[jesperkristensen]

Deploying https://github.com/Azure/bicep/blob/main/docs/examples/101/cosmosdb-free/main.bicep gives an error saying $ is not a valid character in name.

$(appName) should be replaced with ${appName}.

param appName string = uniqueString(resourceGroup().id)
param accountName string = toLower('cosmos-$(appName)')
param location string = resourceGroup().location
param databaseName string = toLower('db-$(appName)')

[anthony-c-martin]

Thanks for raising this! I've submitted a fix for it.