Added a new resource

[sandeepmishratech]

Hey, I have added a new resource under the additional resource section - Scaler topics. Found this online while looking for some resources to learn programming. Topics were explained in detail and found it to be useful and thought of adding it here. Hope this small contribution will help other learners.

Description

Motivation and Context

How Has This Been Tested?

Types of changes

• [ ] Content Update (change which fixes an issue or updates an already existing submission)
• [ ] New Article (change which adds functionality)
• [ ] Documentation change

Checklist:

• [ ] My code follows the code style of this project.
• [ ] I have updated the documentation accordingly.
• [ ] I have read the CONTRIBUTING document.
• [ ] I have made checks to ensure URLs and other resources are valid