docs: attach resource links and add more resources

resources/README.md

@@ -3,20 +3,21 @@ The Resources directory contains a curated collection of materials designed to e
 
 ## Resource Categories
 
-### Tutorials
-1. 
-
-
 ### Textbooks
-1. 
+1. [The C++ Programming Language by Bjarne Stroustrup](https://chenweixiang.github.io/docs/The_C++_Programming_Language_4th_Edition_Bjarne_Stroustrup.pdf)
+2. The Secrets of Object Oriented Programming in C++ by Daya Sagar Baral and Diwakar Baral
+
 
 ### Online Courses
-1. Coursera: C++ Programming for Beginners: An online course ideal for those new to C++.
-2. edX: Object-Oriented Programming in C++: A course focusing on OOP principles using C++.
+1. Coursera: [C++ For C Programmers]()
+2. YouTube: [Object Oriented Programming (OOP) in C++ Course - freeCodeCamp](https://youtu.be/wN0x9eZLix4?si=vfjKyqrkqoRykLg5)
+3. YouTube: [C++ Complete Course - Jenny's Lectures CS IT](https://youtube.com/playlist?list=PLdo5W4Nhv31YU5Wx1dopka58teWP9aCee&si=VIQmrlFOzkmzVJfi)
 
 ### Articles
-1. 
+1. [Learn C++ Programming - Programiz](https://www.programiz.com/cpp-programming/)
+2. [LearnCpp.com](https://www.learncpp.com/): Free website devoted to teaching you how to program in modern C++.
 
 ### Additional Links
-1. C++ Reference Documentation: Official documentation for C++ programming language.
-2. Stack Overflow: A community-driven Q&A platform for programming-related queries.
+1. [C++ Reference Documentation](http://cppreference.com/): Official documentation for C++ programming language.
+2. [Stack Overflow](https://stackoverflow.com/questions/tagged/c++): A community-driven Q&A platform for programming-related queries.
+3. [BCTNotes](https://www.aakritsubedi9.com.np/login): Comprehensive collection of engineering notes, question papers, syllabus, and study materials to help you ace exams and succeed in your studies.