docs: fix YouTube channel link

Ravi Singh · Ravi Singh · commit 7640e39f2007 · 2026-04-16T11:46:24.000+05:30
diff --git a/README.md b/README.md
@@ -180,6 +180,6 @@ Contributions are welcome! Please open an issue or pull request.
 
 ## Author
 
-**Ravi Singh** - [Techposts](https://youtube.com/@techposts)
+**Ravi Singh** - [YouTube](https://www.youtube.com/@ravis1ngh)
 
 Built with ESP-IDF, React, Fastify, and a lot of late nights.
