Update right-aligned table example
Update right-aligned table example

- Use text-right to right align text within table cells
- Use numerical for numbers which should use equal spacing to make them
easier to compare

gavboulton/govuk_elements,joelanman/govuk_elements,TFOH/govuk_elements,alphagov/govuk_elements,joelanman/govuk_elements,gavboulton/govuk_elements,gavboulton/govuk_elements,alphagov/govuk_elements,alphagov/govuk_elements,alphagov/govuk_elements,TFOH/govuk_elements,gavboulton/govuk_elements