Add slightly more verbose installation instructions

Author: dadrc

README.md

@@ -2,4 +2,4 @@
 An inventory management system, based on buckets you can place items in
 
 # Installation
-This is a Python 3 Django module and cannot be used standalone. Also needs `crispy_forms`, which on debianoid systems is available as `python3-django-crispy-forms`.
+This is a python 3 django module and cannot be used standalone. Also needs `crispy_forms`, which on debianoid systems is available as `python3-django-crispy-forms`. Create a project, add the contents of this repositories as a directory named `inventory`.