Reftodocs - reference question marks will trigger the relevant documentation to appear

Clicking on a question mark basically triggers clicking on the documentation list item itself.

Had to change id's to classes and give them to list items as well as guide details.

Had to put the removal of the "current" class in the click that opens the detail as opposed to the click that closed it. It's probably cleaner this way anyway, no setTimeout() is needed now, though I simply commented it out - I wanted to show what happened. I also made comments to that effect. Those can both be removed.

Also changed the title of the details guide section to "lessons, examples, & documentation"