Add chaoss china (#8)

Author: LinuxSuRen

pkg/data/source_test.go

@@ -8,5 +8,5 @@ import (
 func TestGetRSSSources(t *testing.T) {
 	items, err := GetRSSSources()
 	assert.Nil(t, err)
-	assert.Equal(t, 9, len(items))
+	assert.Equal(t, 10, len(items))
 }

pkg/data/subscription.yaml

@@ -44,3 +44,11 @@
   category:
     - design
   language: English
+- rss: http://www.ximalaya.com/album/54433824.xml
+  title: CHAOSScast_China
+  summary: 分享与开源社区，指标和度量的用户故事
+  category:
+    - opensource
+    - 开源
+    - chaoss
+  language: Chinese