Replace ngsi-ld-core-context-v1.3.jsonld

coreContext/ngsi-ld-core-context-v1.3.jsonld

 {
   "@context": {
-
     "ngsi-ld": "https://uri.etsi.org/ngsi-ld/",
     "geojson": "https://purl.org/geojson/vocab#",
     "id": "@id",
     "type": "@type",
-
     "Attribute": "ngsi-ld:Attribute",
     "AttributeList": "ngsi-ld:AttributeList",
     "ContextSourceNotification": "ngsi-ld:ContextSourceNotification",
@@ -55,6 +53,7 @@
       "@id": "ngsi-ld:attributes",
       "@type": "@vocab"
     },
+	"attrs": "ngsi-ld:attrs", 
     "bbox": {
       "@container": "@list",
       "@id": "geojson:bbox"
@@ -178,7 +177,7 @@
       "@type": "@id"
     },
     "temporalQ": "ngsi-ld:temporalQ",
-    "tenant": {
+	"tenant": {
       "@id": "ngsi-ld:tenant",
       "@type": "@id"
     },