fix(docs): correct broken Stagehand reference link in stagehand_tool README

[sanjibani]

Summary

• Fix 404 link https://docs.stagehand.dev/reference/introduction in lib/crewai-tools/src/crewai_tools/tools/stagehand_tool/README.md
• The Stagehand docs restructured under /v3/first-steps/introduction; linking to the docs root lets users land on the current entry point.

Test plan

• Verified replacement URL https://docs.stagehand.dev returns 200 (auto-redirects to /v3/first-steps/introduction).
• Old URL /reference/introduction confirmed 404.

Summary by CodeRabbit

• Documentation
  • Updated the Stagehand documentation link in the Resources section to direct to the main documentation site for improved access.

[corridor-security]

Summary: This PR updates a documentation link in the Stagehand tool README and does not change executable code, authentication, authorization, data handling, or dependency behavior.

Risk: Low risk. No exploitable security vulnerabilities were identified because the change only affects a public documentation URL.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: ac406f32-5085-49ec-b314-5dea980d5346

📥 Commits

Reviewing files that changed from the base of the PR and between 9db2d44 and 95edac0.

📒 Files selected for processing (1)

• lib/crewai-tools/src/crewai_tools/tools/stagehand_tool/README.md

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📝 Walkthrough

Walkthrough

The "Stagehand Documentation" link in the Resources section of the Stagehand Tool README is updated from https://docs.stagehand.dev/reference/introduction to https://docs.stagehand.dev.

Changes

Stagehand README link correction

Layer / File(s)	Summary
Stagehand docs URL correction lib/crewai-tools/src/crewai_tools/tools/stagehand_tool/README.md	The "Stagehand Documentation" URL in the Resources section is changed from the /reference/introduction subpath to the root docs site.

🚥 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 describes the main change: fixing a broken documentation link in the Stagehand tool README, which aligns with the PR objective of correcting the reference link.
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.

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