Update README.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: curiouscoder-cmd

README.md

@@ -170,7 +170,7 @@ This project is licensed under the MIT License - see the [LICENSE](LICENSE) file
 
 ## 🎃 Hacktoberfest
 
-This project participates in Hacktoberfest! Check out our [Hacktoberfest Guide](HACKTOBERFEST.md) for contribution ideas and guidelines.
+This project participates in Hacktoberfest! Check out the [official Hacktoberfest site](https://hacktoberfest.com/) for contribution ideas and guidelines.
 
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