docs: fix typos in Ember Routes docs
docs: fix typos in Ember Routes docs

1. Add a space between "lifecycle" and "hooks"
2. Fix syntax error in `Resolved` type
    (and use the same type definition as shown in the cookbook for consistency)

emberwatch/ember-cli-typescript,emberwatch/ember-cli-typescript,emberwatch/ember-cli-typescript,emberwatch/ember-cli-typescript