Update 20486C_MOD09_LAK.md
Update 20486C_MOD09_LAK.md

resolving issues with three exercises in this lab
MicrosoftLearning/20486-DevelopingASPNETMVCWebApplications,MicrosoftLearning/20486-DevelopingASPNETMVCWebApplications,MicrosoftLearning/20486-DevelopingASPNETMVCWebApplications