With `splitAttributes` and `closingBracketNewLine`, indent closing bracket as much as attributes

[datho7561]

See #435 (comment)

[datho7561]

@AlexXuChen We should also document this in Formatting.md

[AlexXuChen]

@AlexXuChen We should also document this in Formatting.md

Sure thing, I can quickly add that.