message: docs: update README table badges to gh-pages SVGs
  Fixes
  (At least, I hope so!)
  Hosting directly from GitHub while getting caching right is a bit tricky, but it
  looks like GitHub pages has nicer response headers so that the content type is
  correct and the cache expiration is relatively short.
diff: @@ -57,18 +57,18 @@ problems you run into.
  [decaffeinate-examples]: https://github.com/decaffeinate/decaffeinate-examples
  -[hubot-conversion-status]: https://cdn.rawgit.com/decaffeinate-examples/hubot/decaffeinate/conversion-status.svg
  -[hubot-test-status]: https://cdn.rawgit.com/decaffeinate-examples/hubot/decaffeinate/test-status.svg
  -[autoprefixer-conversion-status]: https://cdn.rawgit.com/decaffeinate-examples/autoprefixer/decaffeinate/conversion-status.svg
  -[autoprefixer-test-status]: https://cdn.rawgit.com/decaffeinate-examples/autoprefixer/decaffeinate/test-status.svg
  -[coffeelint-conversion-status]: https://cdn.rawgit.com/decaffeinate-examples/coffeelint/decaffeinate/conversion-status.svg
  -[coffeelint-test-status]: https://cdn.rawgit.com/decaffeinate-examples/coffeelint/decaffeinate/test-status.svg
  -[coffeescript-conversion-status]: https://cdn.rawgit.com/decaffeinate-examples/coffeescript/decaffeinate/conversion-status.svg
  -[coffeescript-test-status]: https://cdn.rawgit.com/decaffeinate-examples/coffeescript/decaffeinate/test-status.svg
  -[atom-conversion-status]: https://cdn.rawgit.com/decaffeinate-examples/atom/decaffeinate/conversion-status.svg
  -[atom-test-status]: https://cdn.rawgit.com/decaffeinate-examples/atom/decaffeinate/test-status.svg
  -[codecombat-conversion-status]: https://cdn.rawgit.com/decaffeinate-examples/codecombat/decaffeinate/conversion-status.svg
  -[codecombat-test-status]: https://cdn.rawgit.com/decaffeinate-examples/codecombat/decaffeinate/test-status.svg
  +[hubot-conversion-status]: https://decaffeinate-examples.github.io/hubot/conversion-status.svg
  +[hubot-test-status]: https://decaffeinate-examples.github.io/hubot/test-status.svg
  +[autoprefixer-conversion-status]: https://decaffeinate-examples.github.io/autoprefixer/conversion-status.svg
  +[autoprefixer-test-status]: https://decaffeinate-examples.github.io/autoprefixer/test-status.svg
  +[coffeelint-conversion-status]: https://decaffeinate-examples.github.io/coffeelint/conversion-status.svg
  +[coffeelint-test-status]: https://decaffeinate-examples.github.io/coffeelint/test-status.svg
  +[coffeescript-conversion-status]: https://decaffeinate-examples.github.io/coffeescript/conversion-status.svg
  +[coffeescript-test-status]: https://decaffeinate-examples.github.io/coffeescript/test-status.svg
  +[atom-conversion-status]: https://decaffeinate-examples.github.io/atom/conversion-status.svg
  +[atom-test-status]: https://decaffeinate-examples.github.io/atom/test-status.svg
  +[codecombat-conversion-status]: https://decaffeinate-examples.github.io/codecombat/conversion-status.svg
  +[codecombat-test-status]: https://decaffeinate-examples.github.io/codecombat/test-status.svg
  ## Goals
  