chore(fix): :wrench: :bug: adjust prepare script to write commit hooks when installing node modules

[heyjaywilson]

Description

Separates the commit hooks so that devmoji runs on the commit message. Updates the README with the proper instructions.

Related Issue

Found by @drag0ndust in #40

Motivation and Context

Git Hooks need to run and those are managed via Husky

How Has This Been Tested?

By me on my computer. I deleted the repo and recloned/walked through the setups

Screenshots (if appropriate):

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [x] Dev tooling (fixes dev tools)

Checklist:

• [x] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document. - [ ] I have added tests to cover my changes. - [ ] All new and existing tests passed.