Update 20487C_MOD07_DEMO.md
Update 20487C_MOD07_DEMO.md

Fixed Bugs: #90062 #90063 #90242 #90243 #90305
MicrosoftLearning/20487-DevelopingWindowsAzureAndWebServices,MicrosoftLearning/20487-DevelopingWindowsAzureAndWebServices,MicrosoftLearning/20487-DevelopingWindowsAzureAndWebServices