Description

Major Element-> element having more than n/2 occurrene in an array

Checklist:

[Yes ] I have read the contribution guidelines before making this PR.
[ Yes] My code follows the style guidelines of this project
[ Yes] I have performed a self-review of my own code
[Yes ] I have commented in my code, particularly in hard-to-understand areas
[Yes ] I have made corresponding changes to the documentation (Language folder or any other readme instructed to)
[ Yes] My changes generates no new warnings
[Yes ] I have added tests that prove my fix is effective or that my feature works