Sure, here is the tutorial in markdown format:

PR Management Tutorial

1. Introduction

This tutorial aims to guide you through the process of creating, reviewing, and merging Pull Requests (PRs) on GitHub. By the end of this tutorial, you will be able to effectively manage PRs and collaborate with others on GitHub projects.

Prerequisites:
- Basic understanding of git and GitHub.
- A GitHub account.

2. Step-by-Step Guide

2.1 Creating a Pull Request

1. Fork the repository you want to contribute to.
2. Clone the forked repository to your local machine.
3. Create a new branch for your changes.

git checkout -b branch-name

1. Make your changes and commit them.

git commit -m "your commit message"

1. Push your changes to your forked repository on GitHub.

git push origin branch-name

1. Navigate to the original repository on GitHub and click on "New pull request".
2. Choose the branch from your forked repository where you made the changes.
3. Click on "Create pull request".

2.2 Reviewing a Pull Request

1. Navigate to the "Pull requests" tab in the repository.
2. Click on the PR you want to review.
3. Go through the changes made and leave comments if necessary.
4. If everything looks good, you can approve the PR.

2.3 Merging a Pull Request

1. After a PR has been approved, you can merge it.
2. Click on "Merge pull request".
3. Click on "Confirm merge".

3. Code Examples

Example: Creating and pushing a new branch

# Checkout to a new branch
git checkout -b new-feature

# Make some changes and commit them
git commit -m "Add a new feature"

# Push the changes to GitHub
git push origin new-feature

4. Summary

In this tutorial, we've covered how to create, review, and merge PRs on GitHub. To continue learning about GitHub, you could explore topics like resolving merge conflicts, using GitHub actions, and more.

5. Practice Exercises

1. Create a new repository on GitHub, clone it, create a new branch, make changes, and create a PR.
2. Review and merge a PR in a repository you have access to.
3. Try to resolve a merge conflict.

Remember, the more you practice, the more comfortable you'll become with managing PRs. Happy coding!