Hi Hive account@elfida, having some experience with C++/OpenGL myself, I have some suggestions to improve this tutorial.

• Using glBegin()/glEnd() to draw primitives isn't considered good style anymore in modern OpenGL. Try an implementation based on Arrays instead (look up glDrawArrays)
• I expect that a new user will have difficulties to compile and link your example code. I'd suggest to provide a CMakeLists.txt with your source code.
• You include stdio.h, but you don't seem to use it anywhere in your code. I also advise to use <iostream> in C++ code.
• Indent code snippets with 4 space to achieve nicer rendering of code sections

Keep up with posting tutorials!