Update the instructions to install from the Homebrew SRE tap

[gvnnn]

As the tool is meant for internal use, I've migrated it to a dedicated SRE tap. Until the formula is removed from homebrew-core (I will submit a request), in order to avoid collisions, the install command requires the full namespace regardless of whether the tap is "tapped". I will update the instructions again once the formula is no longer in homebrew-core.

Summary by CodeRabbit

• Documentation
  • Updated the macOS installation steps to use the recommended Homebrew tap and install path for osdctl.
  • Clarified the setup instructions so users can install the tool from the correct repository source.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

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Review profile: CHILL

Plan: Enterprise

Run ID: 4382b1f0-349d-45e4-8837-e440bc9658d3

📥 Commits

Reviewing files that changed from the base of the PR and between 1cc60dd and bce3851.

📒 Files selected for processing (1)

• README.md

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Walkthrough

The README’s macOS installation instructions now tell users to tap openshift-online/sre-tools before installing osdctl from that tap.

Changes

README install instructions

Layer / File(s)	Summary
Homebrew tap install README.md	The macOS install section replaces the direct Homebrew install command with a tap step followed by an install from openshift-online/sre-tools/osdctl.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

🚥 Pre-merge checks | ✅ 15

✅ Passed checks (15 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the README change to install via the Homebrew SRE tap.
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.
Stable And Deterministic Test Names	✅ Passed	PR only changes README installation text; no Ginkgo tests or test titles were added or edited, so the stable test-name rule isn’t implicated.
Test Structure And Quality	✅ Passed	PR only updates README Homebrew install instructions; no Ginkgo test code or test behavior changed, so the test-quality check is not applicable.
Microshift Test Compatibility	✅ Passed	Only README.md changed; no Ginkgo e2e tests or API-using test code was added, so MicroShift compatibility is not impacted.
Single Node Openshift (Sno) Test Compatibility	✅ Passed	Only README.md was changed to update Homebrew install docs; no Ginkgo/e2e tests were added or modified, so SNO compatibility review is not applicable.
Topology-Aware Scheduling Compatibility	✅ Passed	PASS: The PR only updates README installation instructions; no deployment manifests, operator code, or controllers were modified.
Ote Binary Stdout Contract	✅ Passed	README-only change; no process-level code was modified, so no new stdout writes were introduced.
Ipv6 And Disconnected Network Test Compatibility	✅ Passed	PASS: The PR only updates README macOS install instructions; no new Ginkgo e2e tests or network-facing code were added.
No-Weak-Crypto	✅ Passed	Patch only changes README Homebrew install lines; repo search found no MD5/SHA1/DES/RC4/3DES/Blowfish/ECB, custom crypto, or secret compare code in changes.
Container-Privileges	✅ Passed	README-only PR; no container/K8s manifest changes or privilege flags were found in the repo.
No-Sensitive-Data-In-Logs	✅ Passed	PASS: The PR only updates README install commands to use the SRE tap; no logging code or sensitive fields were added.

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[openshift-ci]

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