Update 20487C_MOD08_DEMO.md
Update 20487C_MOD08_DEMO.md

Fixed Bugs: #89893 #89886 #89868 #89908
MicrosoftLearning/20487-DevelopingWindowsAzureAndWebServices,MicrosoftLearning/20487-DevelopingWindowsAzureAndWebServices,MicrosoftLearning/20487-DevelopingWindowsAzureAndWebServices