Git Commit Types

• feat: Creates a new feature

• fix: Fixes a previously discovered failure/bug

• chore: changes that do not relate to a fix or feature and don't modify src or test files (for example updating dependencies)

• docs: Changes which exclusively affects documentation

• refactor: Refactor without any change in functionality or API (includes style changes)

• perf: Improves performance without any change in functionality or API

• style: changes that do not affect the meaning of the code, likely related to code formatting such as white-space, missing semi-colons, and so on.

• test: Improvements or corrections made to the project's test suite

• build: Changes to local repository build system and tooling

• ci: Changes to CI configuration and CI specific tooling

• release: A release point in the repository

• revert: reverts a previous commit

Source: Angular contribution documentation on GitHub
Source: How to Write Better Git Commit Messages – A Step-By-Step Guide
Must Read: How to Write a Git Commit Message