Added new resources.

[letscode-17]

I have added new resources to your repository for Data Structures and Algorithms books. You will find a wide variety of books to help you deepen your knowledge and become an expert in the field.

Pull Request Template

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My contribution follows the style guidelines of this project
• I have performed a self-review of my own contribution
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have checked my code and corrected any misspellings