Inconsistent routes between `hellofly` Docker image and this repo

Setting up the CLI (`flyctl`) presents a page with the following content:

```
# Clone our hello world app
git clone https://github.com/fly-apps/hello-fly.git

# Go to the directory
cd hello-fly

# Deploy to the world
fly launch --now
```

However, the docs suggest this app should have a `/:your_name` route: https://fly.io/docs/getting-started/launch-demo/#5-visit-your-app ... unless the `hellofly` Docker image and the `hello-fly` repo are for some reason different apps?

(For the avoidance of doubt: this repo does not contain the route suggested in _Visit Your App_ -- it 404s.)

It might be useful to unify this behaviour to avoid confusion. The "deploy your first app" docs direct the user to clone this repo based on the CLI setup, so I doubt I'm the only person who's been confused by this.