ONP-4123: Address post-merge review comments on MRO benchmarks page

[soulchips]

Summary

Follow-up to #10736. Addresses rosieyohannan's review, which was submitted after the PR merged.

• Fix semicolon to period in intro paragraph (; all → . All)
• Expand jobs/min to jobs per minute in test setup
• Split em-dash sentence into two sentences and move "Both resource classes shared the same node group." to before the table
• Move p50/p90/p99 definitions from test setup to under the Increasing-load results heading, reformatted as an AsciiDoc definition list
• Convert inline resource class spec lines (Resource class: ... — VM, maxReplicas=N) to bullet lists, applied consistently to all four subsections (large/small increasing-load, large/small burst)

Test plan

• Vale passes with zero errors

[linear-code]

ONP-4123

[circleci-factory-bot]

FAIL 🔴 author-membership ⚙️ author not in allow-list

soulchips is not in the allow-listed users; allowed: rosieyohannan

PASS 🟢 impact-matches-intent ✨ Editorial docs change matches stated intent

Editorial-only edits to machine-runner-orchestrator-performance-benchmarks.adoc (punctuation, "jobs/min"→"jobs per minute", sentence split/reorder, inline→bullet/definition lists). No exported entity, config value, or customer-gated surface changes; stated intent matches the diff and no consumers break.

SKIP ⚪ 6 skipped check(s)

SKIP ⚪ api-auth-and-design ⚙️ no V3/auth signals in diff

no V3 or auth signals in 1 changed file(s): docs/guides/modules/execution-runner/pages/machine-runner-orchestrator-performance-benchmarks.adoc

SKIP ⚪ agents-md-respect ✨ Style fixes comply with AGENTS.md punctuation rules

The diff replaces semicolons and em-dashes with periods/colons/bullet lists, expands "jobs/min" to "jobs per minute," and reformats percentile definitions as a definition list — all directly aligned with AGENTS.md rules (avoid semicolons, avoid dashes to split sentences or separate item/description, capitalize and punctuate list items). No applicable instruction-file rule is violated.

SKIP ⚪ git-hygiene ⚙️ git history is clean

no merge commits, and no problems with the commit messages

SKIP ⚪ go-best-practices ⚙️ no Go changes to review

no reviewable Go changes among 1 changed file(s)
ignoring 1 non-Go files: docs/guides/modules/execution-runner/pages/machine-runner-orchestrator-performance-benchmarks.adoc

SKIP ⚪ reduces-risk ⚙️ non-test files changed

change touches 1 non-test file(s): docs/guides/modules/execution-runner/pages/machine-runner-orchestrator-performance-benchmarks.adoc

SKIP ⚪ server-compat ⚙️ no new required config keys

no new env.MustGet calls added in this PR

_{🤖 factory-bot · codeowner mode · reviewed @ 2026-09-22T16:45:54Z · re-request a review to re-run
[trace:63718f7] [bot 7479d8b] [config dc281d7] [target cc5d40a]}