fix: correct typo in source tags in third-person games sectionFix source typos

[nandhansolus]

Summary

Fixes spelling mistakes in the Third-Person games section of the README where the tag [[source]] was misspelled.

Changes

• Corrected [[soruce]] → [[source]]
• Corrected [[dource]] → [[source]]

Reason

This keeps formatting consistent with the rest of the document and ensures proper tagging style across entries.