reformatted html

committing interim step so corrections to the html are easily discerned (there are errors in the html that needed fixing.)
fixed html errors

line 74: prefix was missing from attribute name "data-wow-offset"
line 294: closing </div> tag was missing
line 297: closing </section> tag was missing
eliminated unnecessary blank lines

also - on line 246 there was a </br> which should have been <br />

Getting rid of unnecessary blank lines looks like fixing missing teeth. When you scroll your code up and down it ought to look pretty.
This is more than aesthetics though. Proper formatting helps keep bugs out and enhances understanding of the code's purpose.
more cleanup; removed extraneous closing </div>

this is where we start getting a little nit-picky, but there were several instances of double-quotes being used around ruby strings without any string interpolation, so single-quotes are just fine.

Also, it is just a little prettier (imo) to use: class: 'blah blah'
instead of using: :class => 'blah blah'
Merge pull request #13 from leadbaxter/reformat_welcome_index_html

Reformat welcome index html