You can customize your profile so that other people can get a better sense of who you are and the work you do.
About your profile→
Your profile page tells people the story of your work through the repositories you're interested in, the contributions you've made, and the conversations you've had.
About your organization's profile→
Your organization's profile page shows basic information about your organization.
Personalizing your profile→
You can share information about yourself with other GitHub users by setting a profile picture and adding a bio to your profile.
Managing your profile README→
You can add a README to your GitHub profile to tell other people about yourself.
Pinning items to your profile→
You can pin gists and repositories to your profile so other people can quickly see your best work.