(gherkin) Rule keyword is not highlighted

[pkufranky]

Describe the issue

Rule keyword is not highlighted

Which language seems to have the issue?

gherkin

Are you using highlight or highlightAuto? highlight

Sample Code to Reproduce

Feature: foo
  Rule: rule 1
    Scenario: scenario 1

Expected behavior

Rule keyword is highlighted.

Additional context

[joshgoebel]

Great catch. Should be an easy fix - want to take a swing at making a PR for it?

[pkufranky]

Great catch. Should be an easy fix - want to take a swing at making a PR for it?

There is already a pr for this, thanks @Hirse