This module includes a JavaScript and a CSS file from this module and an external CSS file (e.g. a Google Font).
Go to the Drupal 7 root:
mkdir -p ./sites/all/modules/custom/
git clone [email protected]:boldt/drupal7-module-helloworld.git ./sites/all/modules/custom/helloworld
Open Modules in Drupal 7 and activate the "Hello World" module. Afterwards, you find a Hello World entry in the navigation.