The wiki for MoeNavigatorEngine now contains documentation on how to contribute to the project. It also gives you a basic explaination of how the network stack works and how parsers work in MoeNavigatorEngine so that you don't have to look into the code anymore to figure that out:
If you have cloned the source code repository, you can download the whole content of the wiki by invoking "git pull" followed by "git submodule init" and "git submodule update". The wiki content is in the "doc" folder.
More documentation on the different parts of MoeNavigatorEngine will follow. Any specific component you are curious about?