Fixed typos, added customization to CONTRIBUTING.md

[kuberaspeaking]

Fixes

Fixes #84 by @kuberaspeaking

Types of changes

• [x] Bug/Hot fix (non-breaking change which fixes an bug)
• [ ] New feature (non-breaking change which adds a functionality/feature)
• [ ] Refactoring Old Code ( non-breaking change replacing already existing code)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Description

Previous CONTRIBUTING.md file was not customized to this project and had a couple of grammatical mistakes. This commit solves those issues and makes the contribution guide more helpful for people to contribute to this project.

Preview Link

Checklist:

• [x] I have read the CONTRIBUTING guidelines in repository.
• [x] My pull request has a descriptive title and is attached to an existing issue.
• [x] I haven't repeated the code and it follows established code style of repository.
• [x] My branch is up-to-date with upstream branch.

[TechSpiritSS]

Great 👍