```ruby
Dir.glob("source/manual/**/*.md").each do |filename|
  RSpec.describe filename do
    raw = File.read(filename)
    frontmatter = YAML.load(raw.split('---')[1])

    it "uses the correct spelling of GOV.UK" do
      expect(raw).not_to match "Gov.uk"
    end

    it "has an owner" do
      expect(frontmatter['owner_slack']).to be_present, "Page doesn't have `owner_slack` set"
      expect(frontmatter['owner_slack'][0]).to be_in(%[# @]), "`owner_slack` should be a @username or #channel"
    end

    it "has a valid review date" do
      review_by = PageReview.new(double(data: double(frontmatter)))

      expect(review_by.review_by).to be_a(Date)
    end

    it "has a title" do
      expect(frontmatter['title']).to be_present, "Page doesn't have `title` set"
    end

    it "has the correct suffix" do
      expect(filename).to match(/\.html\.md$/)
    end

    unless filename.in?(%w[source/manual/readmes.html.md source/manual/kibana.html.md])
      it "doesn't use H1 tags (the page title is already an H1)" do
        expect(raw).not_to match(/\n#\s/)
      end
    end
  end
end
```

Add new file to linting whitelist
user
```ruby
Dir.glob("source/manual/**/*.md").each do |filename|
  RSpec.describe filename do
    raw = File.read(filename)
    frontmatter = YAML.load(raw.split('---')[1])

    it "uses the correct spelling of GOV.UK" do
      expect(raw).not_to match "Gov.uk"
    end

    it "has an owner" do
      expect(frontmatter['owner_slack']).to be_present, "Page doesn't have `owner_slack` set"
      expect(frontmatter['owner_slack'][0]).to be_in(%[# @]), "`owner_slack` should be a @username or #channel"
    end

    it "has a valid review date" do
      review_by = PageReview.new(double(data: double(frontmatter)))

      expect(review_by.review_by).to be_a(Date)
    end

    it "has a title" do
      expect(frontmatter['title']).to be_present, "Page doesn't have `title` set"
    end

    it "has the correct suffix" do
      expect(filename).to match(/\.html\.md$/)
    end

    unless filename.in?(%w[
      source/manual/readmes.html.md
      source/manual/kibana.html.md
      source/manual/howto-merge-a-pull-request-from-an-external-contributor.html.md
    ])
      it "doesn't use H1 tags (the page title is already an H1)" do
        expect(raw).not_to match(/\n#\s/)
      end
    end
  end
end
```
assistant