error in documentation

[akarelas]

Version

3.0.1

Reproduction link

https://cli.vuejs.org/guide/css.html#pre-processors

Node and OS info

N/A

Steps to reproduce

Look at the above link, where it says $color = red

What is expected?

It should say $color: red;

What is actually happening?

It says $color = red;

[yyx990803]

Tip: for small errors in docs, it's better to directly submit a PR to fix it.