Renamed resources to taxonomies in default routes yaml file

refs https://github.com/TryGhost/Team/issues/65

- this was incorrect
- we don't use the wording `resources` in the routes yaml file

core/server/services/settings/default-routes.yaml

@@ -7,6 +7,6 @@ collections:
       - home
       - index
 
-resources:
+taxonomies:
   tag: /tag/{slug}/
   author: /author/{slug}/

core/test/unit/services/settings/yaml-parser_spec.js

@@ -27,7 +27,7 @@ describe('UNIT > Settings Service:', function () {
 
             const result = yamlParser(file, 'goodroutes.yaml');
             should.exist(result);
-            result.should.be.an.Object().with.properties('routes', 'collections', 'resources');
+            result.should.be.an.Object().with.properties('routes', 'collections', 'taxonomies');
             yamlSpy.calledOnce.should.be.true();
         });
 

core/test/utils/fixtures/settings/badroutes.yaml

@@ -7,6 +7,6 @@ collections:
       - home
       - index
 
-resources:
+taxonomies:
  tag: /tag/{slug}/
   author: /author/{slug}/

core/test/utils/fixtures/settings/goodroutes.yaml

@@ -7,6 +7,6 @@ collections:
       - home
       - index
 
-resources:
+taxonomies:
   tag: /tag/{slug}/
   author: /author/{slug}/