Update code block attributes in README documentation

[JonoPrest]

Summary

Updated Rust code block attributes in the README.md documentation to properly indicate code examples that should not be run during documentation tests.

Changes

• Changed first code block from ```rust to ```rust,no_run - indicates the example requires external setup (API token) and should not be executed
• Changed second code block from ```rust to ```rust,ignore - indicates the example is illustrative and should not be tested

Details

These changes ensure that the documentation test runner (rustdoc) properly handles these code examples:

• The no_run attribute compiles the code but skips execution, suitable for examples requiring external configuration
• The ignore attribute skips both compilation and execution, appropriate for illustrative code snippets

This prevents documentation test failures while maintaining code visibility and clarity for users reading the README.

https://claude.ai/code/session_01R4SPHryLoDodD8HJg3YaLh

Summary by CodeRabbit

• Documentation
  • Clarified which code examples are non-runnable to prevent unintended execution.
  • Enhanced network connection example with proper environment variable handling.
  • Improved code snippet organization and imports for better 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: 52da65b2-4789-4de1-8027-372f3dd9479f

📥 Commits

Reviewing files that changed from the base of the PR and between b51b3a0 and 162204d.

📒 Files selected for processing (1)

• README.md

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📝 Walkthrough

Walkthrough

The README.md was updated to refine Rust code examples in the "Quick Start" and "Connecting to Different Networks" sections by marking code fences as non-runnable, loading environment variables, improving token handling, and adjusting imports for clarity.

Changes

Cohort / File(s)	Summary
README Documentation Updates README.md	Marked code fences as no_run, added explicit ENVIO_API_TOKEN environment variable loading via std::env::var(), replaced placeholder token calls with reference passing (api_token(&api_token)), streamlined imports to include only hypersync_client::Client, and wrapped examples with Rust main function placeholders.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• PR #119: Directly modifies the same README Quick Start and network configuration examples, refining code fences, environment variable loading, and token handling patterns.

Suggested reviewers

• keenbeen32

Poem

🐰 A quick hop through docs so fine,
Code fences marked, no_run align,
Token loaded from the air,
Examples now beyond compare! ✨

🚥 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 'Update code block attributes in README documentation' directly and accurately summarizes the main change—updating Rust code fence attributes (no_run, ignore) in README examples to fix documentation test handling.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claude/fix-broken-tests-aUeAi

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[JonoPrest]

Whoops, I broke the doc tests when I moved this.