You can view basic information about a repository, such as the repository's activity and contribution activity.
Repository graphs help you view and analyze data for your repository.
You can view an overview of a repository's activity through Pulse. Pulse includes a list of open and merged pull requests, open and closed issues, and a graph showing the commit activity for the top 15 users who committed to the default branch of the project in the selected time period.
You can view the top 100 contributors to a repository in the Contributors graph. Merge commits and commits that don't include changes aren't included in this graph.