#1485 docs(examples): fix VoltAgent repository link in with-anthropic example

PR Checklist

• The commit message follows our guidelines: https://voltagent.dev/docs/community/contributing/#commit-convention

Bugs / Features

• Related issue(s) linked — N/A, docs-only link fix
• Tests for the changes have been added — N/A, Markdown only
• Docs have been added / updated
• Changesets have been added — N/A, no package change

What is the current behavior?

The with-anthropic example links "VoltAgent" to https://github.com/vercel/voltagent, which returns 404.

What is the new behavior?

The link points to the actual repository, https://github.com/VoltAgent/voltagent.

Notes for reviewers

One line changed in examples/with-anthropic/README.md (line 3). No code, dependency, or package behavior changes, so no changeset is included.

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Summary by cubic

Fixes the broken VoltAgent link in the with-anthropic example and corrects the article before "VoltAgent" in the README.

Summary by CodeRabbit

• Documentation
  • Updated the VoltAgent link in the Anthropic example README to point to the correct GitHub repository, github.com/VoltAgent/voltagent, instead of the outdated github.com/vercel/voltagent address. This keeps the example’s documentation link aligned with the current repository location. No other documentation or user-facing behavior changed.