Twenty Fifteen: Formatting cleanup for documentation, crossing eyes, dotting tees.

Props lancewillett, MikeHansenMe, fixes #30149.


git-svn-id: https://develop.svn.wordpress.org/trunk@30233 602fd350-edb4-49c9-b593-d223f7449a82
Add some docs to `wp.media.view.EditorUploader`.

Props ericlewis.
See #29951.


git-svn-id: https://develop.svn.wordpress.org/trunk@30234 602fd350-edb4-49c9-b593-d223f7449a82
Twenty Fifteen: adding licensing info for the image used in the screenshot.

Props sakinshrestha, fixes #30156.



git-svn-id: https://develop.svn.wordpress.org/trunk@30235 602fd350-edb4-49c9-b593-d223f7449a82
Twenty Fifteen: Use the new archive template tags and make archive template titling way simpler!

Props obenland, fixes #30246.



git-svn-id: https://develop.svn.wordpress.org/trunk@30236 602fd350-edb4-49c9-b593-d223f7449a82
Twenty Fifteen: use continue reading links for auto-generated excerpts to provide a readable link for screenreaders.

Props davidakennedy, kraftbj, fixes #30135.



git-svn-id: https://develop.svn.wordpress.org/trunk@30237 602fd350-edb4-49c9-b593-d223f7449a82