Update README.md

Author: masmahbubalom

README.md

@@ -1,11 +1,11 @@
 ### This collection of interview questions will help you in your next Data Science, Artificial Intelligence, Machine Learning, Deep Learning job.
 
-#### List of Topic
+## List of Topic
 
 [100 Machine Learning Interview Questions](https://github.com/masmahbubalom/InterviewQuestions/tree/main/ML%20Interview%20Question "Click here to see the questions!")
 
-
-#### Contributions are most welcomed.
+## Contributions 
+**Contributions are most welcomed.**
 
  - Fork the repository.
  - Commit your questions or answers.