* Update light.markdown
I had a hard time setting up attributes to entities until I research for some other user's examples and saw they were using "data:". I feel like this should be mentioned or at least exposed with an example. I saw being used in 2 different ways:
```yaml
action:
service: light.turn_on
data:
entity_id: light.kitchen_lights
brightness: 200
```
```yaml
action:
- service: light.turn_on
entity_id: light.kitchen_lights
data:
brightness: 200
```
I'm not sure which one is the best/correct way but tried with both and they work
* Fix typos
* Transition updated
According to this https://home-assistant.io/cookbook/automation_sun/ (and my own experience) transition appears to only be supported on Hue bulbs - so I have updated the Transition note.
* Update light.markdown
Change language to be more ambiguous.
The "chucknorris" reference and SO link is amusing to developers but it's just a waste of users' time to put it in the documentation. Even worse, since home-assistant/home-assistant#2215, "chucknorris" is not even supported but will default to "white".