updated ontology URIs in the example closes: #1

examples/example1ENVI-polished.ttl

-@prefix : <http://saref.linkeddata.es/data/envi/example1> .
+@prefix : <https://saref.etsi.org/saref4city/data/envi/example1/> .
 @prefix dc: <http://purl.org/dc/elements/1.1/> .
 @prefix owl: <http://www.w3.org/2002/07/owl#> .
 @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@@ -7,17 +7,17 @@
 @prefix prov: <http://www.w3.org/ns/prov#> .
 @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
 @prefix vann: <http://purl.org/vocab/vann/> .
-@prefix saref: <https://w3id.org/saref#> .
-@prefix s4envi: <https://w3id.org/saref4envi#> .
-@prefix s4ener: <https://w3id.org/saref4ee#> .
+@prefix saref: <https://saref.etsi.org/core/> .
+@prefix s4envi: <https://saref.etsi.org/saref4envi/> .
+@prefix s4ener: <https://saref.etsi.org/saref4ener/> .
 @prefix dcterms: <http://purl.org/dc/terms/> .
 @prefix geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> .
 @prefix time: <http://www.w3.org/2006/time#> .
 @prefix wurvoc: <http://www.wurvoc.org/vocabularies/om-1.8/> .
-@base <http://saref.linkeddata.es/data/envi/example1> .
+@base <https://saref.etsi.org/saref4city/data/envi/example1/> .
 
-<http://saref.linkeddata.es/data/envi/example1> rdf:type owl:Ontology ;
-                                                owl:versionIRI <http://saref.linkeddata.es/def/v1/envi/example1> ;
+<https://saref.etsi.org/saref4city/data/envi/example1/> rdf:type owl:Ontology ;
+                                                owl:versionIRI <https://saref.etsi.org/saref4city/data/envi/example1/> ;
                                                 dcterms:creator <http://purl.org/net/mpoveda> ;
                                                 rdfs:comment "Example of use for the SAREF extension for environment"@en ;
                                                 dcterms:creator <http://www.garcia-castro.com/foaf.rdf#me> ;