Move redirections-updated to redirections
Fix broken redirects

This includes 410'ing 9 URLs, mostly local government ones.
Merge pull request #138 from alphagov/fix-redirects

Fix redirects
Update README with a few notes
Merge pull request #139 from alphagov/update-readme

Update README with a few notes
Define width on figcaption, to enable ellipsis styles on text
Merge pull request #140 from alphagov/fix-ellipsis-styles-on-figcaption

Define width on figcaption, to enable ellipsis styles on text