[MTA] Typo fixes for MTA install

[mpershina]

Tracked under https://redhat.atlassian.net/browse/MTA-6724.
Preview: https://mpershina.github.io/Previews/MTA/Install-typo-fixes.html

Summary by CodeRabbit

• Documentation
  • Minor grammar and terminology edits across installation docs: fixed a trailing-whitespace in a title abstract, clarified Docker verification wording, standardized “environment variable” for JAVA_HOME, refined phrasing about disconnected installs, corrected RWO terminology for storage, and adjusted persistent-volume wording/formatting for clarity.

[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: efca23a2-9ecc-4e2f-80f9-a84f7d8d5246

📥 Commits

Reviewing files that changed from the base of the PR and between 7586e52 and b469acc.

📒 Files selected for processing (1)

• docs/topics/mta-install/ref_persistent-volume-requirements.adoc

✅ Files skipped from review due to trivial changes (1)

• docs/topics/mta-install/ref_persistent-volume-requirements.adoc

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📝 Walkthrough

Walkthrough

Minor documentation corrections across AsciiDoc installation and reference guides: whitespace, grammar, terminology, and inline formatting edits only; no changes to commands, procedures, or public API surface. (47 words)

Changes

Cohort / File(s)	Summary
Procedure Documentation docs/topics/mta-install/proc_installing-cli-for-docker.adoc, docs/topics/mta-install/proc_installing-cli-zip.adoc, docs/topics/mta-install/proc_installing-mta-disconnected-environment.adoc	Grammar and wording fixes: added/adjusted articles and conjunctions, changed "environmental variable" → "environment variable", and clarified Docker OS/Arch wording.
Reference Documentation docs/topics/mta-install/ref_custom-resource-settings.adoc, docs/topics/mta-install/ref_persistent-volume-requirements.adoc	Terminology and formatting fixes: corrected "RW0" → "RWO" and added article/inline code formatting for ReadWriteOnce PV description.
Assembly Documentation assemblies/mta-install-title/assembly_red-hat-build-of-keycloak.adoc	Removed trailing whitespace in the abstract paragraph.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• [MTA] Quick style fixes for Installing the migration toolkit for applications #335 — Overlapping stylistic edits to the same assembly/document files (including the assembly_red-hat-build-of-keycloak.adoc).
• CQA 2.1 (FEB) - Install Guide #318 — Related editorial changes across the same installation docs (proc_installing-cli-for-docker.adoc, proc_installing-cli-zip.adoc, ref_persistent-volume-requirements.adoc).

Suggested reviewers

• Pkylas007
• anarnold97

Poem

🐰 I hopped through docs with nimble feet,
Fixed spaces, words, and a typo neat,
RWO now stands where RW0 fell,
A tiny change — but reads quite well! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main purpose of the pull request—fixing typos in MTA installation documentation across multiple files.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch Install-typo-fixes

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[Pkylas007]

LGTM!