external links should open a new tab

[aaronshurley]

Why

We want to create a consistent experience for visitors to carvel.dev. Currently, we have external links (e.g. link to GitHub repo) that follow those link within the current tab creating a disjointed experience of our website and losing the "reminder" to continue on the website. To fix this, we would like to have all external links open a new tab.

As a carvel.dev visitor
I want external links to open in new tabs
So that I can preserve the carvel.dev experience and be reminded to browse the website further.

Acceptance Criteria

Given the website is updated
When I click an external link (i.e. a link that directs a visitor away from the website)
Then I am directed to that link in a new tab.

Notes

• any html links may need to updated to include the target attribute
• Looks like this could be pretty easy with Hugo: https://discourse.gohugo.io/t/external-links-in-new-tab/5311

[aaronshurley]

Thank you @kayvee83 for the PR!