Documentation bug: outdated directories

[ming-00]

I believe that some of the the directories specified in the Project Structure section of the developer's guide might be outdated:



The CLI application should reside in the packages/cli/ directory.

There is no src/Parser directory in the core library.

[ang-zeyu]

Thanks for the catch @ming-00. This portion should be rewritten into an introduction of sorts with the more detailed architecture diagram now available.