Correct YAML examples to use upper case enum of areaType

[mhfoo]

Problem description To correct YAML examples to use upper case enum of areaType:

• CIRCLE

Expected action Correction of the YAMLs to reflect the correct enum

Additional context enum for areaType introduced in #132

[mhfoo]

Correct the following to reflect radius as well, instead of accuracy:

    example:
        areaType: Circle
        center:
          latitude: 50.735851
          longitude: 7.10066
        accuracy: 50000

[jlurien]

Thanks, have to be fixed. We have to create a PR for it