Update 20487C_MOD07_DEMO.md
Update 20487C_MOD07_DEMO.md

Fixed Bugs: #90059 #90045 #90061 #90060 #90041 #90039 #90035
MicrosoftLearning/20487-DevelopingWindowsAzureAndWebServices,MicrosoftLearning/20487-DevelopingWindowsAzureAndWebServices,MicrosoftLearning/20487-DevelopingWindowsAzureAndWebServices