fix(docs): ensure getting started links have a return between them

[johncowen]

Looks like there is some strange markdown behaviour with if_version.

This PR just amends one problem, but doesn't solve whatever the issue is. Happy to close if someone has a better solution.

Before

After

[netlify[bot]]

✅ Deploy Preview for kuma ready!

Name	Link
🔨 Latest commit	28dbe53e33fab162d6e0df072f1ee5d996ec4cfa
🔍 Latest deploy log	https://app.netlify.com/sites/kuma/deploys/661e175e9acc180008b97db4
😎 Deploy Preview	https://deploy-preview-1743--kuma.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 94 (🟢 up 8 from production) Accessibility: 90 (no change from production) Best Practices: 100 (no change from production) SEO: 85 (no change from production) PWA: 80 (no change from production) View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[slonka]

Still renders the wrong way in 2.1:

https://deploy-preview-1743--kuma.netlify.app/docs/2.1.x/

[slonka]

FYI @fabianrbz xrel: https://github.com/Kong/jekyll-generator-single-source/pull/16

[slonka]

@johncowen - added a newline to your PR so it renders correctly in older versions