docs: add Zenith Hosting to the installation methods table

[odpay]

Description

hey, i work on Zenith Hosting, a startup doing one-click hosting for open source apps. we added Appsmith to our marketplace, so this PR adds a small "Deploy with Zenith" badge as one more row in the Installation Methods table (links to https://zenith.hosting/host/appsmith).

it sits under the existing Docker / Kubernetes / AWS rows as one more option for people who want a self-hosted Appsmith without running the server themselves. happy to reword or move it if you would rather it lived somewhere else, or to drop it entirely if you would rather not link third-party hosts.

we share a cut of revenue with the projects we host. happy to explain if you're curious: hello@zenith.hosting

Docs-only change: one line added to README.md, no code, no tests affected.

Fixes #42079

Automation

Docs-only, so no Cypress run is needed here. happy to add /ok-to-test if you want CI on it.

Communication

Should the DevRel and Marketing teams inform users about this change?

• Yes
• No

Summary by CodeRabbit

• Documentation
  • Added Zenith as a deployment option in the installation guide.
  • Included a one-click deployment button and a link to managed-hosting documentation.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: fa587693-5b86-4930-a1de-8796f5f3f1ac

📥 Commits

Reviewing files that changed from the base of the PR and between 5994e9a and 0d0509e.

📒 Files selected for processing (1)

• README.md

---

Walkthrough

The README installation methods table now includes a Zenith managed, one-click deployment option with a deployment button and documentation link.

Changes

Zenith Hosting documentation

Layer / File(s)	Summary
Add Zenith deployment option README.md	Adds a Zenith managed deployment button and documentation link to the installation methods table.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Suggested reviewers: amelia-c0n

Poem

A new deployment path appears,
With one-click steps and clearer gears.
Zenith joins the installation flight,
Making setup quick and light.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the README change to add Zenith Hosting to the installation methods table.
Description check	✅ Passed	The description explains the change, motivation, issue, testing impact, and communication status using the required template sections.
Linked Issues check	✅ Passed	The PR adds the requested Zenith Hosting row with a marketplace link and keeps the change additive and documentation-only.
Out of Scope Changes check	✅ Passed	The only reported change is the requested one-line README addition, with no unrelated code or configuration changes.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

Warning

⚠️ This pull request has been flagged as potential spam (promotional) by CodeRabbit slop detection and should be reviewed carefully.