add proper guiding example

[ ] Added description of change
[ ] Proper file name given
[ ] Added tests and example, test must pass
[ ] Added documentation so that the program is self-explanatory and educational - Doxygen guidelines
[ ] Relevant documentation/comments is changed or added
[ ] PR title follows semantic
[ ] Search previous suggestions before making a new one, as yours may be a duplicate.
[ ] I acknowledge that all my contributions will be made under the project's license.

Notes:

ayaankhan98 / bigINT