Update 20487C_MOD08_DEMO.md
Update 20487C_MOD08_DEMO.md

Fixed Bugs: #90050 #89889 #89902 #89906 #89900 #89899 #89898 #89897 #90057
MicrosoftLearning/20487-DevelopingWindowsAzureAndWebServices,MicrosoftLearning/20487-DevelopingWindowsAzureAndWebServices,MicrosoftLearning/20487-DevelopingWindowsAzureAndWebServices