Added additional example for async.each

Signed-off-by: Justin Noel <github@calendee.com>
Changed the order of the asyn.each examples.  The simpler version is first.  The more detailed version is second.

Signed-off-by: Justin Noel <github@calendee.com>
Merge pull request #401 from calendee/eachDocumentation

Additional Example for async.each