Link to documentation is wrong

[mkennten]

Module: 05

Lab: Create a language understanding model with the Language service

Task: Train and test the model

Step: 05

Description of issue
Link "documentation" is missing the URL prefix and ends up in 404 on GitHub.com
==> "https://microsoftlearning.github.io/azure/ai-services/language-service/conversational-language-understanding/concepts/evaluation-metrics"

should be
https://learn.microsoft.com/en-us/azure/ai-services/language-service/conversational-language-understanding/concepts/evaluation-metrics