message: Update docs/contributing/application-architecture.md
  code review update
diff: 1. The [generation engine](#Core-template-studio) (referred to as [Core Template Studio](https://github.com/Microsoft/CoreTemplateStudio)) written in [.NET Core](https://dotnet.microsoft.com/download).
  -<img alt="VSIX Download" src="../resources/webts-architecture-diagram.png" width="80%" />
  +<img alt="Architecture Diagram" src="../resources/webts-architecture-diagram.png" width="80%" />
  <br/>
  