message: Add URL link to docs text in README.md
  Add link to "aka.ms/terminal-docs" text in README, thus making more easier to arrive the docs.
diff: @@ -241,7 +241,7 @@ Visual Studio.
  ## Documentation
  -All project documentation is located at aka.ms/terminal-docs. If you would like
  +All project documentation is located at [aka.ms/terminal-docs](https://aka.ms/terminal-docs). If you would like
  to contribute to the documentation, please submit a pull request on the [Windows
  Terminal Documentation repo](https://github.com/MicrosoftDocs/terminal).
  