Update README with new `updateFastBootManifest` hook
Update README with new `updateFastBootManifest` hook

tildeio/ember-cli-fastboot,ember-fastboot/ember-cli-fastboot,tildeio/ember-cli-fastboot,kratiahuja/ember-cli-fastboot,ember-fastboot/ember-cli-fastboot,josemarluedke/ember-cli-fastboot,josemarluedke/ember-cli-fastboot,kratiahuja/ember-cli-fastboot