Fix fastbootDependencies example to be valid JSON
Fix fastbootDependencies example to be valid JSON

' -> "
josemarluedke/ember-cli-fastboot,rwjblue/ember-cli-fastboot,josemarluedke/ember-cli-fastboot,kratiahuja/ember-cli-fastboot,tildeio/ember-cli-fastboot,tildeio/ember-cli-fastboot,rwjblue/ember-cli-fastboot,ember-fastboot/ember-cli-fastboot,kratiahuja/ember-cli-fastboot,ember-fastboot/ember-cli-fastboot