[request] include the doc folder in the released .zip files on github

[m040601]

trafficstars

Thanks for your work in this interesting project.

You have some very usefull and essential markdown files like the tutorial and user guides etc, in, https://github.com/OWASP/Amass/tree/master/doc

But you are not including them in the released .zip files on github. You just a config.ini example file. This forces one to come back to github just to read them online.

Please ship them as well as the Readme.md.

Thanks in advance