documentation broken links

[xinity]

Hi there,

There's a few broken links in the documentation. The readme link at the end which send to the harbormaster website documentation is broken for example. Same goes for most in documentation (*.md files in doc directory) links.

Could be wise to fix them :)

[lbarthelemy]

I've just saw that the whole site http://harbormaster.io is down with message:

NOTICE: This domain name expired on 12/15/2018 and is pending renewal or deletion.

[orodbhen]

This appears to be available at https://kassisol.github.io/

[hannyjxb]

This appears to be available at https://kassisol.github.io/

Not available anymore. Here is the new link I found in this repo. https://github.com/kassisol/hbm/tree/master/docs