Fixed the title.

//cc @samdutton
Added Promises demo from @idog
Minor tweaks to layout; fixed GitHub link
Added ServiceWorker demo, .htaccess now forces HTTPS for all requests
Added ServiceWorker demo, .htaccess now forces HTTPS for all requests
Merge pull request #49 from hemanth/patch-1

Fixed the title.
Update the battery example to match the spec

Uses the `navigator.getBattery()` promise when available instead of the deprecated `navigator.battery`
Merge pull request #54 from leops/master

Update the battery example to match the spec
Added video/multi
Added video/multi code
Fixed GitHub case
Lots of minor tweaks to handle new style
Lots of  tweaks to handle new style
Validates!
Added picture, sizes and srcset examples
battery tweak
Fixing merges