Describe the project, what is it. What problem does the application look to solve.
Show how other people can use your project (i.e. API, library, framework).
code sample
How do you start this thing?! Explain how to get the application running or to integrate it.
Description on how other can contribute to the project. Provide links bug report,issue trackers, twitter feeds... List who has contributed to the project or main contributors.
Copyright and licensing information (i.e. MIT, Apache, etc.).