message: Update README.md
  Adorn the link to .zip archive since Markdown doesn't linkify it by
  default.
diff: @@ -14,7 +14,7 @@ meshoptimizer is hosted on GitHub; you can download the latest release using git
  git clone -b v0.9 https://github.com/zeux/meshoptimizer.git
  ```
  -Alternatively you can download the .zip archive from GitHub: https://github.com/zeux/meshoptimizer/archive/v0.9.zip
  +Alternatively you can [download the .zip archive from GitHub](https://github.com/zeux/meshoptimizer/archive/v0.9.zip).
  ## Building
  