message: readme: Update.
diff: @@ -52,8 +52,8 @@ As mentioned earlier, Elle is composed of a set of sub-libraries, designed to ea
  - [protocol](src/elle/protocol): Network communication designed to support RPCs
  - [das](src/elle/das): Symbol-based introspection
  - [athena](src/elle/athena): Byzantine environment algorithms (Paxos)
  -- [aws](src/elle/service/aws): *reactorified* AWS API wrapper
  -- [dropbox](src/elle/service/dropbox): *reactorified* Dropbox API wrapper
  +- service/[aws](src/elle/service/aws): *reactorified* AWS API wrapper
  +- service/[dropbox](src/elle/service/dropbox): *reactorified* Dropbox API wrapper
  ## How to build Elle (or parts of Elle)
  @@ -68,6 +68,8 @@ Elle uses [Drake](https://github.com/infinit/drake) and has it as a submodule.
  ### How to compile
  +For a detailed procedure, visit our [wiki: How to build](https://github.com/infinit/elle/wiki/How-to-build).
  +
  First you need to install drakes requirements.
  ```bash
  