"Safari Read Later sidebar" => "Safari Reading List sidebar"

The feature's name is Reading List.
Added icon entry for Opera Coast browser
Merge pull request #22 from codykrieger/patch-1

"Safari Read Later sidebar" => "Safari Reading List sidebar"
Merge pull request #24 from tagawa/small-edits

Added icon entry for Opera Coast browser
Merge branch 'master' of https://github.com/audreyr/favicon-cheat-sheet
follow changes