adapt example uri to new convention
As agreed in the saref4envi extension, the example URI should follow: <https://saref.etsi.org/saref4city/v1.1.2/example/<<<name_of_the_example>>>/>
As agreed in the saref4envi extension, the example URI should follow: <https://saref.etsi.org/saref4city/v1.1.2/example/<<<name_of_the_example>>>/>