message: doc: fix "documentation" link (https://github.com/enso-org/ide/pull/1146)
  Original commit:
diff: @@ -60,7 +60,7 @@ and [a high performance WebGL UI framework (EnsoGL)](https://github.com/enso-org
  Enso is distributed both in form of
  [pre-build packages for MacOS, Windows, or Linux](https://github.com/enso-org/ide/releases),
  as well as the [source code](https://github.com/enso-org). See the
  -[demo scenes](http://TODO), and read the [documentation](http://TODO) to learn
  +[demo scenes](http://TODO), and read the [documentation](docs/product) to learn
  more.
  Currently to start IDE you have to run **Enso Project Manager** first. For more
  