fix: replace curly-brace IP and node placeholders in monitoring and volcano-vgpu docs

[mesutoezdil]

Replace curly-brace placeholders with angle-bracket form to match the convention used elsewhere:

• {GPU node ip} -> <GPU-node-ip> in real-time-device-usage.md
• {scheduler node ip} -> <scheduler-ip> in device-allocation.md
• {volcano scheduler cluster ip} -> <scheduler-ip> in monitor.md and both how-to-use-volcano-vgpu.md files
• {node name} -> <node-name> in both how-to-use-volcano-vgpu.md files

Files changed:

• docs/userguide/monitoring/real-time-device-usage.md
• docs/userguide/monitoring/device-allocation.md
• docs/userguide/volcano-vgpu/nvidia-gpu/monitor.md
• docs/userguide/volcano-vgpu/nvidia-gpu/how-to-use-volcano-vgpu.md
• docs/installation/how-to-use-volcano-vgpu.md

Summary by CodeRabbit

• Documentation
  • Improved several user guide and installation examples with clearer placeholder text for cluster node names and IP addresses.
  • Standardized metrics endpoint examples across vGPU and monitoring docs for easier copy-and-paste use.
  • Updated command snippets to use consistent angle-bracket placeholders, making setup and verification steps easier to follow.

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This pull-request has been approved by: mesutoezdil
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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

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Run ID: d35a677d-455c-4fd5-9cbd-55f71bf8549e

📥 Commits

Reviewing files that changed from the base of the PR and between a3e36d4 and d5c1b1e.

📒 Files selected for processing (5)

• docs/installation/how-to-use-volcano-vgpu.md
• docs/userguide/monitoring/device-allocation.md
• docs/userguide/monitoring/real-time-device-usage.md
• docs/userguide/volcano-vgpu/nvidia-gpu/how-to-use-volcano-vgpu.md
• docs/userguide/volcano-vgpu/nvidia-gpu/monitor.md

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📝 Walkthrough

Walkthrough

Updated Volcano vGPU and monitoring documentation examples to use angle-bracket placeholders for node names, scheduler IPs, and GPU node IPs in CLI snippets and endpoint text.

Changes

Volcano vGPU and monitoring placeholder updates

Layer / File(s)	Summary
Placeholder text updates docs/installation/how-to-use-volcano-vgpu.md, docs/userguide/volcano-vgpu/nvidia-gpu/how-to-use-volcano-vgpu.md, docs/userguide/volcano-vgpu/nvidia-gpu/monitor.md, docs/userguide/monitoring/device-allocation.md, docs/userguide/monitoring/real-time-device-usage.md	Documentation examples and endpoint references replace brace-style placeholders with angle-bracket placeholders for node names, scheduler IPs, and GPU node IPs.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 I hopped through docs with a tidy grin,
<node-name> and <scheduler-ip> now fit right in.
The metrics paths still glow so bright,
With placeholders neat and syntax light.
Thump thump—my whiskers say, “all looks right!”

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 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 main change: replacing curly-brace placeholders in the monitoring and Volcano vGPU docs.
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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