chore(docs): add logo

Author: LeoBorai

README.md

@@ -1,4 +1,7 @@
 <div>
+  <div align="center" style="display: block; text-align: center;">
+    <img src="./docs/images/logo.png" width="100" height="100" />
+  </div>
   <h1 align="center">Python for Data Science</h1>
   <h4 align="center">🐍 Following "Python for Data Science" Book Exercises</h4>
 </div>