Update README.md to reflect sln files renaming
Update README.md to reflect sln files renaming

Azure/azure-mobile-apps-net-client,MatkovIvan/azure-mobile-apps-net-client,MatkovIvan/azure-mobile-apps-net-client,Azure/azure-mobile-apps-net-client,Azure/azure-mobile-apps-net-client,MatkovIvan/azure-mobile-apps-net-client