didn't need a duplicate

renamed to index.html, but sublime text saved the current progress to
the old name
Better live preview, bug fixes

Bug #1: didn’t change back from nosrc.png after changing address to
something other than empty  - fixed using an if/else statement on the
‘website’ variable rather than the ‘iframe’ src attribute

Bug#2: didn’t work on chrome and firefox: firefox worked after adding
‘text’ to the end of the data pull, and chrome worked after I launched
it with the flag to allow it to pull from local files (wish I tried
this first)

And renamed oldEmbed to originalEmbed - still looking for a more
elegant way to do this but it works for the meantime.