[css-color-5] Typo in serialization examples

[mirisuzanne]

According to the color serialization rules in css-color-4, all channels are serialized as numbers (without units), even when those numbers represent percentages or degrees.

However, many of the examples in css-color-5 maintain % units on eg lightness channels. I imagine that's a typo?

[svgeesus]

It wasn't a typo when the example was created. But yes, needs to be updated.