More Usage in documentation

[michaeloliveraz]

If I may offer some constructive suggestions.

1. Screen shots should show the URL to the page being shown
2. The Fobi tasks should be the same whether in Django Admin or in Fobi Management. Much time was wasted trying to figure out why the Django Admin Fobi screens did not work or did not look like or behave like the documentation.
3. Code examples need to have filename references

I see huge potential and offer these as constructive suggestions not complaints.