Fix broken link in README.md

[fa-fifi]

#skip-changelog

📜 Description

💡 Motivation and Context

💚 How did you test it?

📝 Checklist

• I reviewed submitted code
• I added tests to verify changes
• No new PII added or SDK only sends newly added PII if sendDefaultPii is enabled
• I updated the docs if needed
• All tests passing
• No breaking changes

🔮 Next steps

[denrase]

Looks good, thx for noticing.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.84%. Comparing base (5467aa8) to head (6a76bcd).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3326      +/-   ##
==========================================
+ Coverage   88.12%   88.84%   +0.72%     
==========================================
  Files         295       99     -196     
  Lines       10122     3408    -6714     
==========================================
- Hits         8920     3028    -5892     
+ Misses       1202      380     -822     

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