what is missing in their document is after cloneing and getting latest version you will get
The serviceUrl cannot be empty
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Configuration.ConfigurationErrorsException: The serviceUrl cannot be empty
the reason is in your web.config you need to update following settings
<episerver.find serviceUrl="" defaultIndex="" />
simply create an an account with
put and index name and select english and then select create index