message: Add link to `api::client::Client` docs
diff: @@ -221,10 +221,11 @@ type = { fs = { dir = "target/northstar/repository" }}
  Northstar uses **JSON** to encode the messages shared with clients. The messages
  are newline delimited. This is a common approach that facilitates clients being
  implemented in any programming language. However, Northstar as a library,
  -provides a convenient `api::client::Client` (**TODO**: Add rustdoc link) type that
  -can be used for a simpler client implementation using **Rust**. Northstar
  -interacts with clients through a `TCP` socket bound to each address configured
  -in `runtime::config::Config::console`.
  +provides a convenient
  +[Client](https://esrlabs.github.io/northstar/northstar/api/client/struct.Client.html)
  +type that can be used for a simpler client implementation using **Rust**.
  +Northstar interacts with clients through a `TCP` socket bound to each address
  +configured in `runtime::config::Config::console`.
  * **TODO**: Move client guide part to a README-console.md etc
  * **TODO**: Update guide/src/client/connect with the connect sequence.
  