dhi: update comparison table (#24381)

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## Description

- Converted image to table.

https://deploy-preview-24381--docsdocker.netlify.app/dhi/

## Related issues or tickets

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## Reviews

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- [ ] Editorial review

Signed-off-by: Craig Osterhout <craig.osterhout@docker.com>

Author: craig-osterhout

content/manuals/dhi/_index.md

@@ -47,9 +47,24 @@ required.
 
 DHI is available in the following three subscriptions.
 
-![DHI Tiers](./images/dhi-tiers.png)
+| Feature | Community | Select | Enterprise |
+|---|---|---|---|
+| Hardened, minimal images | ✅ | ✅ | ✅ |
+| Near-zero CVEs | ✅ | ✅ | ✅ |
+| Verifiable SBOMs & SLSA Build L3 provenance | ✅ | ✅ | ✅ |
+| Full, unsuppressed CVE visibility | ✅ | ✅ | ✅ |
+| Drop-in adoption, no workflow changes | ✅ | ✅ | ✅ |
+| Full catalog of open source images under Apache 2.0 | ✅ | ✅ | ✅ |
+| Built with Docker Hardened System Packages | ✅ | ✅ | ✅ |
+| Upstream cadence for Docker-released patches | ✅ | ✅ | ✅ |
+| FIPS/STIG variants | ❌ | ✅ | ✅ |
+| Critical CVE fixes < 7 days with SLA-backed continuous patching | ❌ | ✅ | ✅ |
+| Customizations | ❌ | Up to 5 | Unlimited |
+| Access to Hardened System Packages repository | ❌ | ❌ | ✅ |
+| Full catalog access available | ❌ | ❌ | ✅ |
+| Extended Lifecycle Support add-on available | ❌ | ❌ | ✅<br><br>Includes:<br>✅ +5 years of hardened updates<br>✅ Maintains security updates after upstream EOL<br>✅ SBOMs & provenance<br>✅ Protects long-lived workloads |
 
-For more details see the [Docker Hardened Images subscription
+For pricing and more details, see the [Docker Hardened Images subscription
 comparison](https://www.docker.com/products/hardened-images/#compare).
 
 Explore the sections below to get started with Docker Hardened Images, integrate