Determine linting strategy for docs

[bencodezen]

Summary

In order to address concerns brought up via #40, I've created this issue to track how we lint docs going forward in order to make everyone's life easier. This will also have the benefit of making contributors lives easier since we won't have to request them to make stylistic changes anymore.

Example Problem

Prettier has styles that conflict with the Vue style guide (e.g., space before parentheses when defining functions) and @NataliaTepluhina brought up the idea of switching to ESLint.

[yyx990803]

In v3 we are adopting prettier, so maybe we should just use that (minimal config to worry about and just auto-format on commit)

[bencodezen]

@yyx990803 Agreed on it taking minimal config to worry about. This was originally filed as a result of:

Per Vue’s coding style there should always be a space after function
names e.g. data () instead of data().

since Prettier doesn't allow us to configure for this style.

@NataliaTepluhina @phanan @sdras What do you think?

[NataliaTepluhina]

@bencodezen I believe we could change our docs styles to Prettier ones (i.e. change data () to data() as I believe the latter is more common. I might be wrong with this assumption though :)

[NataliaTepluhina]

Closing as a duplicate of #233