GitHub is a web-based platform for hosting, managing, and sharing code. It is used by developers to collaborate on projects ranging from small to large, and is the largest host of source code in the world. GitHub provides an easy way to track changes, work together on code, and keep code in a secure environment. It also allows users to create and store repositories of source code, share them with collaborators, and even comment on code.

Step 1: Sign Up - Create a Github account and learn the basics of navigating the interface.

Step 2: Start a Repository - Create a repository for your project and learn how to add and edit files.

Step 3: Collaborate - Learn how to collaborate with other users and manage contributions from your team.

Step 4: Branch Out - Create branches to develop different versions of your project and learn how to merge them.

Step 5: Go Public - Publish your repository and make it available to other users.

Step 6: Get Advanced - Learn best practices for managing large projects and using advanced features like webhooks and APIs.

Why learn GitHub?

1. GitHub enables code collaboration, version control, and code management.
2. Allows developers to share code and view changes made by other developers.
3. Helps to showcase a portfolio of work by allowing developers to store and showcase their code publicly.
4. Offers a wide range of tools and features to support collaboration and productivity.
5. Provides an easy way to track project progress and identify bugs.
6. Can be used to host websites and documents.
7. Offers free hosting for open-source projects.

With this roadmap, you can quickly get up to speed on all the core features of Github and become a pro in no time.

You may also be interested in these GitHub alternatives.

1. Bitbucket
2. GitLab