docs: add Infracost CLI to Tools & CLIs section

[filooww]

🌟 Describe the resource you want to add

Infracost CLI is a command line tool that estimates cloud infrastructure costs from Terraform code before running terraform apply. Useful for catching expensive changes early in the development cycle.

📚 Which category does it belong to?

Tools & CLIs

✅ Checklist

The resource is not already listed.
The resource is relevant to DevOps or Cloud engineering.
It is added under the correct section.
The entry is formatted clearly and consistently.
A valid and working link to the resource is included.

✍️ Entry Format

| Infracost CLI | Command line tool for estimating cloud infrastructure costs from Terraform code before applying changes | infracost.io |

Summary by CodeRabbit

• Documentation
  • Added Infracost CLI to the Tools & CLIs reference documentation.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 7fb2cdb8-c572-4334-a262-b68a36939010

📥 Commits

Reviewing files that changed from the base of the PR and between d0a9a3b and c2ea33e.

📒 Files selected for processing (1)

• README.md

---

📝 Walkthrough

Walkthrough

A new Infracost CLI entry is added to the Tools & CLIs table in README.md, including its description, official project link, and the date of entry (2026-05-29).

Changes

Documentation Update

Layer / File(s)	Summary
Infracost CLI tool entry README.md	Infracost CLI is added to the Tools & CLIs reference table with description and official link.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

📚 A rabbit hops with glee so bright,
Adding tools to the list tonight!
Infracost joins the awesome crew,
One more row—the list grows true! 🌟

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The pull request title clearly and concisely summarizes the main change: adding Infracost CLI to the Tools & CLIs section of the documentation.
Description check	✅ Passed	The pull request description covers all critical template sections: resource description, category selection, checklist completion, and entry format. All required information is present and well-structured.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ 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 and usage tips.}