docs: revamp Getting Started guide

[rodgtr1]

Closes #55490

Revamps the Getting Started experience into a concise, four-step guide:

1. Deploy a Teleport cluster
2. Connect infrastructure
3. Set up access controls
4. Configure audit logging

This guide is designed as a multi-page, flowing overview that links to more in-depth documentation (if needed), rather than a long one-page tutorial.

Replaces:

• Existing single-page Getting Started guide (Teleport Enterprise Cloud)
• Linux Demo guide (Teleport Community Edition). This is actually repurposed in this guide.

Links in other pages have been updated to point to these new locations and sidebar has been updated as well.

[github-actions]

Amplify deployment status

Branch	Commit	Job ID	Status	Preview	Updated (UTC)
travis.rodgers/getting-started-guide-revamp	d1dcdd9	45	✅SUCCEED	travis-rodgers-getting-started-guide-revamp	2025-10-16 23:14:49

[ptgott]

With the exception of the Linux demo guide, each page of the Get Started flow is pretty short. I think it would make sense to fold all of these pages into a single page.
For the Linux Demo guide, I think we could keep it in its current place (/docs/linux-demo), but link to it just as we do other pages outside the Get Started flow, e.g., the links to Enroll Resources guides.
One advantage of this is that it provides more substantial content to help make this page more "interesting and useful" for Google search results. This also will help distinguish individual pages of the flow from related pages, e.g., the RBAC getting started guide. Short index pages in our docs have often had poor viewership, and I think the fact that they're so light on content is a big reason—most readers arrive from Google rather than other docs pages.
For links to other pages in the Get Started guide, we could consider adding a _blank target so the page opens in a separate tab.

@ptgott Yeah that makes sense. Let me try to tweak it separate from this PR/branch and provide a one page alternative to compare.

@ptgott I had a discussion with Kenny today in 1-1 and I think we're going to go with this 4 page guide. I'm going to go ahead and close out the 1 page version.

👍 Let's plan to review the pageviews for the Getting Started series in a month or so and see if it would benefit from SEO improvements.

[ptgott]

We don't have to block on this, but I still think we can simplify the UX here. Currently, the user needs to:

• Read a bullet
• Figure out that they need to read the information boxes
• Click an information box that corresponds to a bullet

Would it make sense to include the link and description for each edition within the same component so the reader doesn't need to connect so many dots? We could remove the edition boxes and add a short (< 1 sentence) description of each edition to the bullets that precede them, along with a link to each edition page.

[rodgtr1]

We could get rid of the bullet points entirely and just have the three edition boxes maybe?

[ptgott]

Right now, it seems like the Prerequisites section includes requirements for the whole guide, and that the guide is for connecting infrastructure in general. In other words, it seems like the user needs an Ubuntu Linux server and Docker to connect infrastructure in general.

I would make it clearer that there's a demo/getting started workflow that the user can follow as a quick example.

Also, for a new user, there's only guidance for enrolling this Ubuntu server. We should add some more explicit mention of the fact that there are other resources a user can add through the Web UI.

[rodgtr1]

Great feedback, I've updated the page based on it.