Wrong explanation in en/1-6.md about large titles

This [paragraph](https://github.com/twostraws/HWSTranslation/blame/master/en/1-6.md#L81) explains that Views show large titles, because their predecessor view did so. That is misleading and wrong. The preceding code enables the navCtrl to show large titles, but as explained in the next code change, the views can decide themselves, how to handle their navItem.