"repair language code in manifest"

manifest.yaml

@@ -1,11 +1,9 @@
 checking:
-  checking_entity:
-  - translation team
+  checking_entity: [translation team]
   checking_level: Level 0
 dublin_core:
   conformsto: rc0.2
-  contributor:
-  - Door43 World Missions Community
+  contributor: [Door43 World Missions Community]
   creator: Door43 World Missions Community
   description: Open-licensed exegetical notes that provide historical, cultural, and
     linguistic information for translators. It provides translators and checkers with
@@ -14,19 +12,13 @@ dublin_core:
   format: text/markdown
   identifier: obs-tn
   issued: ''
-  language:
-    direction: ltr
-    identifier: en
-    title: Chinese
+  language: {direction: ltr, identifier: zh, title: Chinese}
   modified: '2017-09-05'
   publisher: unfoldingWord
-  relation:
-  - en/obs
+  relation: [en/obs]
   rights: CC BY-SA 4.0
   source:
-  - identifier: obs-tn
-    language: en
-    version: '1.0'
+  - {identifier: obs-tn, language: en, version: '1.0'}
   subject: Translator Notes
   title: OBS translationNotes
   type: help