Add missing docs classitems

Author: Baltazore

tests/docs/fixtures/expected.js

@@ -104,6 +104,9 @@ module.exports = {
     '(private) @ember-data/store Store#init',
     '(public) @ember-data/active-record/request @ember-data/active-record/request#query',
     '(public) @ember-data/active-record/request @ember-data/active-record/request#findRecord',
+    '(public) @ember-data/active-record/request @ember-data/active-record/request#createRecord',
+    '(public) @ember-data/active-record/request @ember-data/active-record/request#deleteRecord',
+    '(public) @ember-data/active-record/request @ember-data/active-record/request#updateRecord',
     '(public) @ember-data/adapter Adapter#coalesceFindRequests',
     '(public) @ember-data/adapter Adapter#createRecord',
     '(public) @ember-data/adapter Adapter#deleteRecord',
@@ -252,6 +255,9 @@ module.exports = {
     '(public) @ember-data/json-api Cache#rollbackRelationships',
     '(public) @ember-data/json-api/request @ember-data/json-api/request#findRecord',
     '(public) @ember-data/json-api/request @ember-data/json-api/request#query',
+    '(public) @ember-data/json-api/request @ember-data/json-api/request#createRecord',
+    '(public) @ember-data/json-api/request @ember-data/json-api/request#deleteRecord',
+    '(public) @ember-data/json-api/request @ember-data/json-api/request#updateRecord',
     '(public) @ember-data/json-api/request @ember-data/json-api/request#serializePatch',
     '(public) @ember-data/json-api/request @ember-data/json-api/request#serializeResources',
     '(public) @ember-data/legacy-compat SnapshotRecordArray#adapterOptions',
@@ -356,6 +362,9 @@ module.exports = {
     '(public) @ember-data/request-utils @ember-data/request-utils#sortQueryParams',
     '(public) @ember-data/rest/request @ember-data/rest/request#findRecord',
     '(public) @ember-data/rest/request @ember-data/rest/request#query',
+    '(public) @ember-data/rest/request @ember-data/rest/request#createRecord',
+    '(public) @ember-data/rest/request @ember-data/rest/request#deleteRecord',
+    '(public) @ember-data/rest/request @ember-data/rest/request#updateRecord',
     '(public) @ember-data/serializer Serializer#normalize',
     '(public) @ember-data/serializer Serializer#normalizeResponse',
     '(public) @ember-data/serializer Serializer#serialize',