This project is an umbrella and the git repository is used only for documentation (see gh-pages branch). Home page: https://projects.spring.io/spring-cloud.
The sub-projects of Spring Cloud live in a different Github organization: https://github.com/spring-cloud. Please use the issue trackers in the individual projects there to report bugs and request new features. Each project has a README with instructions on how to build the source code and how to contribute ideas and code.
If you are looking for the project formerly known as Spring Cloud, please go https://github.com/spring-cloud/spring-cloud-connectors.