[documentation] Add recommendation to use https

[GoogleCodeExporter]

Just stumbled across this project and I find it very interesting.

However, i noticed that in the project home, all examples load the JS file 
using plain HTTP.
It's true that one using this library probably can figure out by himself, but I 
believe it would be wise to update those examples to use HTTPS instead 
(googlecode is also available under HTTPS) and perhaps add a recommendation to 
use HTTPS on *all* components of a security-sensitive web application (at least 
all components that may contain javascript, like html and js files).

The reason is quite simple: plain HTTP is subject to man-in-the-middle attacks, 
so an attacker could easily inject malitious code into the client's browser 
(say, pretending he is code.google.com) and grab the sensitive information.

Original issue reported on code.google.com by [email protected] on 22 Feb 2015 at 10:06