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doc/create-projects.md

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+# Create Projects
+
+You can use Composer to create new projects from existing packages. There are several applications for this:
+
+1. You can deploy application packages.
+2. You can check out any package and start developing on patches for example.
+3. Projects with multiple developers can use this feature to bootstrap the initial application for development.
+
+To create a new project using composer you can use the "install-project", pass it a package name + version and a directory to create the project in. The directory is not allowed to exist, it will be created during installation.
+
+    php composer.phar install-project doctrine/orm 2.2.0 /path/to/new-project
+
+By default the command checks for the packages on packagist.org. To change this behavior you can use the --repository-url parameter and either point it to an HTTP url for your own packagist repository or to a packages.json file.
+
+If you want to get a development version of the code directly checked out from version control you have to add the --prefer-source parameter.
+