Fix additional context inclusion (#2095)

* Update test_linked_data.py

* Update linked_data.py

Author: webb-ben

pygeoapi/linked_data.py

@@ -189,7 +189,8 @@ def geojson2jsonld(cls, data: dict, dataset: str,
     """
 
     LOGGER.debug('Fetching context from resource configuration')
-    context = cls.config['resources'][dataset].get('context', []).copy()
+    linked_data = cls.config['resources'][dataset].get('linked-data', {})
+    context = linked_data.get('context', []).copy()
     templates = cls.get_dataset_templates(dataset)
 
     defaultVocabulary = {

tests/other/test_linked_data.py

@@ -69,6 +69,9 @@ def test_geojson2jsonld_single_feature(api_, feature):
     result_dict = json.loads(result)
 
     assert '@context' in result_dict
+    assert len(result_dict['@context']) == 2
+    assert 'stn_id' in result_dict['@context'][1]
+
     assert result_dict['@id'] == 'http://example.org/feature/1'
     assert 'schema:geo' in result_dict