[MNT] modify logo size

README.md

@@ -1,9 +1,8 @@
 <div align="center">
 
 <p align="center">
-<img src="https://raw.githubusercontent.com/AbductiveLearning/ABLkit/main/docs/_static/img/logo.png" alt="ABLkit logo" style="width: 30%;"/>
+<img src="https://raw.githubusercontent.com/AbductiveLearning/ABLkit/main/docs/_static/img/logo.png" alt="ABLkit logo" style="width: 25%;"/>
 </p>
-<br>
 
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