add alt attribute for img element (the analogous elements on the page already have an alt attribute)
Merge pull request #297 from Trott/accessibility-tweaks

add alt attribute for img element, rm white space from empty lines
Update webworkers.md

copyedit
Update dragndrop.md
Added current support in Chrome and updated reference article and polyfill.
Merge pull request #300 from adanilo/master

Added current support in Chrome and updated reference article and polyfi...
grids in Opera
Clean up package.json

Closes #301.
Mark this as a private npm package

See <https://www.npmjs.org/doc/json.html#private>.

Closes #303.
Merge pull request #298 from Trott/patch-1

Update webworkers.md
Fixed freqdec's Input Range Polyfill url
Merge pull request #304 from andreruffert/patch-1

Fixed freqdec's Input Range Polyfill url
Merge pull request #303 from mathiasbynens/private

Mark this as a private npm package
Add `rangeslider.js` as another polyfill

Close #305.
Fix `freqdec`'s URL and add `rangeslider.js`

Close #306.
add `position: sticky` entry

Fixes #276
Merge pull request #307 from cvrebert/master

add `position: sticky` entry
regenerate index.html to pull in updates
Remove trailing whitespaces from posts

Close h5bp/html5please#309.
Merge pull request #310 from cvrebert/regenerate-index-html

Regenerate `index.html` to pull in updates