Issue with URL

line 114 of http://advancedplotting.github.io/docs/index.html (may also be on other pages):

 `<li><a href="http://www.advancedplotting.com">Back to Main Website</a></li>`

I can't seem to access that website and have to return to advancedplotting.github.io instead. 

But add-on works perfectly and I would highly recommended.