Update README.md

Author: lmangani

README.md

@@ -1,5 +1,5 @@
 <a href="https://chdb.fly.dev" target="_blank">
-  <img src="https://user-images.githubusercontent.com/1423657/232511039-480548f7-2e51-4a33-949b-15e0a2a79d9c.png" width=150 />
+  <img src="https://user-images.githubusercontent.com/1423657/236688026-812c5d02-ddcc-4726-baf8-c7fe804c0046.png" width=130 />
 </a>
 
 [![.github/workflows/release.yml](https://github.com/chdb-io/chdb-server/actions/workflows/release.yml/badge.svg)](https://github.com/chdb-io/chdb-server/actions/workflows/release.yml)