Oh well, I checked out the htmlplanet for kids site.
I like it BUT
only got to do the first 10 lessons on trial mode.
so, not terribly helpful for a documentation/tutorial site.
And I spent a bit of that debugging the lessons 
If you need to rest checking out, let me know 
…mmmm… more dragons brains with added bubbles… ScHLUrrP!
And, having said that I did realise that I was doing the interface way of adding a link wrong!
I was using the attribute edit on the interface to add a link to text, not the text edit blue pop up menu with the add link icon.
Every days a school day.
I may just get back into this a bit.