Updates for 8/6

Alt Text on Twitter

You can now include alt text on Twitter attachments, similar to the way you would on the native platform. Simply click the icon in the formatting bar to add a description / alt text to any of the images.

LinkedIn Asset Limits

We've made some changes to LinkedIn so that you can now:

- Post up to 20 images / GIFs in the same post (previously to be up to 9 images)

- Can post Images & GIFs in the same post (could only do a single GIF before)