Fix table job
Create `about` page

Or rather, "How it works".
Rework a few job columns, and make locations sane
Create grid search
Remove location from fixtures, temporarily
Create shortcut methods to retrieve job info
Use the new shortcuts, and replace `location` with `city`
Create helper method to search for the jobs of a company
Don't rely on rows order, and set some tests as TODO
Allow script to be executed