Replace smart quotes with regular apostrophes
Merge branch 'fix-apostrophes' of https://github.com/baleboy/crosswalk-website into baleboy-fix-apostrophes
 Reverted a few changes for ` --> <code> blocks

 Some of the changes to the quotes were not necessary.  Using the
 quote ` mark will convert to <code>.
Merge branch 'baleboy-fix-apostrophes'