Fix Link for the Cake Visual Studio Extension
Fix Link for the Cake Visual Studio Extension

The current link to the Cake extension on the Visual Studio Gallery is
outdated. Instead the extension can now be found on the Visual Studio
Marketplace.

cake-build-bot/website,cake-build/website,cake-build-bot/website,cake-build/website,cake-build/website,devlead/website,devlead/website,devlead/website