fix: missing generate common types in api reference (#1460)

Signed-off-by: yangw <[email protected]>

Author: drivebyer

api/common/v1beta2/common_types.go

@@ -1,4 +1,4 @@
-package api
+package v1beta2
 
 import (
 	appsv1 "k8s.io/api/apps/v1"

api/common/v1beta2/common_types_test.go

@@ -1,4 +1,4 @@
-package api
+package v1beta2
 
 import (
 	"testing"

api/common/v1beta2/doc.go

@@ -0,0 +1,21 @@
+/*
+Copyright 2020 Opstree Solutions.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package v1beta2 contains common types used by Redis Operator APIs.
+// These types are shared across different Redis resource types.
+//
+// +groupName=redis.redis.opstreelabs.in
+package v1beta2