Added:
* titles to make it possible to link to sections
* that you can only reload those sections if you're not using packages
* information on how to migrate your config, and that key files and folders are hidden by default
Added that you can reload some pieces without a restart. Added reference to ensuring you run the check config as the user you run Home Assistant as (so that the right configuration is found)
* Added how to find the web UI.
As the getting started guide is now totally Hass.io focussed, there's no longer anywhere to tell people how to reach the web UI.
* Typo fix
